/* =============================================================
   BTC CONSULTING v5 — DESIGN SYSTEM
   Source: Design Kit v1.0 (Barlow / Blue / Industrial-Brutalist)
   ============================================================= */

/* ------------------------------------------------------------- */
/* 1. TOKENS                                                      */
/* ------------------------------------------------------------- */
:root {
  /* Colors */
  --c-black:   #0D0D0B;
  --c-white:   #FFFFFF;
  --c-accent:  #1B4AE8;
  --c-accent-h:#1540D0;
  --c-accent-p:#1236B8;
  --c-accent-l:#5580FF;          /* accent on dark bg — 4.68:1 on #0D0D0B */
  --c-gray:    #B0ADA8;
  --c-gray-t:  #787572;          /* gray for text on light bg — 4.54:1 on #FFF */
  --c-gray-d:  #5A5A58;
  --c-gray-dd: #4A4A48;
  --c-gray-l:  #B8B5B0;
  --c-border:  #D8D5D0;
  --c-border-d:#2A2A28;
  --c-surface: #1A1A18;
  --c-surface-w:#F5F4F2;

  /* Typography */
  --f-display: 'Barlow Condensed', sans-serif;
  --f-body:    'Barlow', sans-serif;

  /* Layout */
  --gutter:    56px;
  --section-y: 80px;
  --container: 1440px;

  /* Shadows */
  --shadow-float: 0 12px 32px rgba(0,0,0,0.4);

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 768px) and (max-width: 1023px) {
  :root {
    --gutter: 32px;
    --section-y: 60px;
  }
}

@media (max-width: 767px) {
  :root {
    --gutter: 20px;
    --section-y: 52px;
  }
}

/* ------------------------------------------------------------- */
/* 2. RESET                                                       */
/* ------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--c-white);
  color: var(--c-gray-d);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font: inherit; background: none; border: none; }
h1, h2, h3, h4 { font-family: var(--f-display); text-transform: uppercase; margin: 0; }

/* ------------------------------------------------------------- */
/* 3. TYPOGRAPHY                                                  */
/* ------------------------------------------------------------- */
.t-display {
  font-family: var(--f-display);
  font-size: clamp(36px, 6vw, 88px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.92;
  color: var(--c-black);
}

.t-heading {
  font-family: var(--f-display);
  font-size: clamp(28px, 4vw, 56px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.015em;
  line-height: 0.93;
  color: var(--c-black);
}

.t-subhead {
  font-family: var(--f-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.0;
  color: var(--c-black);
}

.t-h4 {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--c-black);
}

.t-label {
  font-family: var(--f-display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--c-accent);
  line-height: 1.2;
}

.t-label-muted {
  font-family: var(--f-display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--c-gray);
  line-height: 1.2;
}

.t-lead {
  font-family: var(--f-body);
  font-size: 17px;
  font-weight: 400;
  color: var(--c-gray-d);
  line-height: 1.72;
}

.t-body {
  font-family: var(--f-body);
  font-size: 16px;
  font-weight: 400;
  color: var(--c-gray-d);
  line-height: 1.72;
}

.t-small {
  font-family: var(--f-body);
  font-size: 13px;
  font-weight: 400;
  color: var(--c-gray-t);
  line-height: 1.65;
}

.t-accent { color: var(--c-accent); }
.section--accent .t-accent { color: var(--c-white); text-decoration: underline; text-underline-offset: 0.15em; }

/* Dark context */
.dark .t-display,
.dark .t-heading,
.dark .t-subhead,
.dark .t-h4     { color: var(--c-white); }
.dark .t-lead    { color: var(--c-gray); }
.dark .t-body    { color: var(--c-gray); }
.dark .t-label   { color: var(--c-accent-l); }
.dark .t-label-muted { color: var(--c-gray); }
.dark .t-small   { color: var(--c-gray); }

/* ------------------------------------------------------------- */
/* 4. LAYOUT                                                      */
/* ------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
}

.section--dark {
  background: var(--c-black);
  color: var(--c-white);
}

.section--accent {
  background: var(--c-accent);
  color: var(--c-white);
}
.section--black {
  background: var(--c-black);
  color: var(--c-white);
}
.section--black .t-accent { color: var(--c-accent); }

/* Split — 1fr 1fr */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

@media (max-width: 767px) {
  .split {
    grid-template-columns: 1fr;
  }
  .split__right {
    border-left: none;
    border-top: 1px solid var(--c-border);
  }
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
}

@media (min-width: 768px) and (max-width: 1023px) {
  .cards { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .cards { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- */
/* 5. BUTTONS                                                     */
/* ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--f-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 14px 28px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--c-accent);
  color: var(--c-white);
}
.btn-primary:hover { background: var(--c-accent-h); }
.btn-primary:active { background: var(--c-accent-p); }

.btn-outline {
  background: transparent;
  color: var(--c-black);
  border: 1px solid var(--c-border);
}
.btn-outline:hover { border-color: var(--c-accent); color: var(--c-accent); }

.btn-outline-light {
  background: transparent;
  color: var(--c-black);
  border: 1px solid var(--c-border);
}
.btn-outline-light:hover { border-color: var(--c-accent); color: var(--c-accent); }

.btn-text {
  background: transparent;
  color: var(--c-gray);
  padding: 0;
  border: none;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: var(--c-border-d);
  font-weight: 600;
  letter-spacing: 0.1em;
}
.btn-text:hover { color: var(--c-accent); text-decoration-color: var(--c-accent); }

.btn-dark {
  background: var(--c-black);
  color: var(--c-white);
}
.btn-dark:hover { background: var(--c-surface); }

@media (max-width: 767px) {
  .btn--full { width: 100%; justify-content: center; }
}

/* ------------------------------------------------------------- */
/* 6. HEADER / NAV                                                */
/* ------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  height: 64px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding-inline: var(--gutter);
  max-width: var(--container);
  margin-inline: auto;
  position: relative;
}

.header-logo {
  font-family: var(--f-display);
  font-size: 38px;
  font-weight: 800;
  color: var(--c-black);
  line-height: 1;
}
.header-logo span { color: var(--c-accent); }
.header-logo img { height: 38px; width: auto; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--f-body);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-gray-d);
  transition: color 0.2s;
}
.nav-link:hover { color: var(--c-black); }
.nav-link.active {
  color: var(--c-black);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--c-accent);
}

.header-cta {
  padding: 10px 20px;
  font-size: 12px;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.burger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-black);
  transition: transform 0.25s, opacity 0.25s;
}
.burger:nth-child(3) { width: 14px; }

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  background: var(--c-white);
  border-top: 1px solid var(--c-border);
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  overflow-y: auto;
  z-index: 99;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.3s var(--ease), visibility 0.3s;
}

.mobile-nav.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav .nav-link {
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--c-gray-d);
  padding: 14px var(--gutter);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mobile-nav .nav-link:first-child { color: var(--c-black); }

@media (max-width: 900px) {
  .header-nav { display: none; }
  .header-actions-sep { display: none; }
  .header-actions { gap: 8px; }
  .header-cta { display: none; }
  .mobile-toggle {
    display: flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
}

/* ------------------------------------------------------------- */
/* 7. HERO (split 1fr / 1fr)                                     */
/* ------------------------------------------------------------- */
.hero {
  height: 100svh;
  max-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--c-white);
  overflow: hidden;
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: calc(64px + var(--section-y)) var(--gutter) var(--section-y) var(--gutter);
  gap: 18px;
}

.hero__content .t-display { color: var(--c-black); }
.hero__content .t-lead    { color: var(--c-gray-d); }
.hero__content .t-label   { color: var(--c-accent); }

.hero__image {
  position: relative;
  overflow: hidden;
}

.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  display: block;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    height: auto;
    max-height: none;
    min-height: 100svh;
  }
  .hero__image {
    aspect-ratio: 4/3;
    order: -1;
  }
  .hero__content {
    padding: 32px var(--gutter);
  }
  .hero__content .btn { width: 100%; justify-content: center; }
}

/* ------------------------------------------------------------- */
/* 8. STAT STRIP                                                  */
/* ------------------------------------------------------------- */
.stat-strip {
  background: var(--c-black);
  border-top: 1px solid var(--c-gray-dd);
  border-bottom: 1px solid var(--c-gray-dd);
}

.stat-strip__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stat-item {
  padding: 2.5rem var(--gutter);
  border-right: 1px solid var(--c-gray-dd);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--c-white);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-num.is-accent { color: var(--c-accent-l); }

.stat-unit {
  font-family: var(--f-display);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 700;
  color: var(--c-white);
}

.stat-item .t-label-muted {
  font-size: 11px;
  color: var(--c-gray);
}

@media (max-width: 700px) {
  .stat-strip__inner { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(3) { border-top: 1px solid var(--c-gray-dd); }
}

/* ------------------------------------------------------------- */
/* 8b. TABLE                                                      */
/* ------------------------------------------------------------- */
.econ-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--f-body);
  font-size: 0.9375rem;
}
.econ-table th {
  padding: 0.875rem 1.25rem;
  font-family: var(--f-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-white);
  background: var(--c-black);
  text-align: left;
}
.econ-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-gray-d);
  vertical-align: middle;
  line-height: 1.5;
}
.econ-table td:first-child { color: var(--c-black); font-weight: 600; }

/* ------------------------------------------------------------- */
/* 9. ACCORDION                                                   */
/* ------------------------------------------------------------- */
.acc-item { border-bottom: 1px solid var(--c-border-d); }
.acc-item:first-child { border-top: 1px solid var(--c-border-d); }

.acc-btn {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--f-display);
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-gray);
  text-align: left;
}
.acc-item.open .acc-btn { color: var(--c-white); }

.acc-icon {
  font-size: 22px;
  font-weight: 300;
  flex-shrink: 0;
  transition: color 0.3s;
  color: var(--c-gray-dd);
  line-height: 1;
  width: 20px;
  text-align: center;
}
.acc-item.open .acc-icon { color: var(--c-accent); }

.acc-body {
  padding-bottom: 20px;
  color: var(--c-gray);
  font-size: 14px;
  line-height: 1.72;
  max-width: 520px;
}
.acc-body[hidden] { display: none; }

/* Light context accordion */
.acc-item--light { border-color: var(--c-border); }
.acc-item--light .acc-btn { color: var(--c-gray); }
.acc-item--light.open .acc-btn { color: var(--c-black); }
.acc-item--light .acc-body { color: var(--c-gray-d); }

/* ------------------------------------------------------------- */
/* 10. FEATURE LIST                                               */
/* ------------------------------------------------------------- */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--f-display);
  font-size: 16px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-white);
}

.feature-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--c-accent);
  flex-shrink: 0;
}

/* Body-weight feature list (for descriptive items) */
.feature-list--body li {
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--c-gray);
  align-items: flex-start;
  line-height: 1.55;
}
.feature-list--body li::before { margin-top: 0.5em; }

/* Light context */
.feature-list--light li { color: var(--c-black); }
.feature-list--light.feature-list--body li { color: var(--c-gray-d); }

/* ------------------------------------------------------------- */
/* 11. IMAGE CARDS                                                */
/* ------------------------------------------------------------- */
.img-card {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--c-surface);
}

.img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  display: block;
  transition: filter 0.3s;
}
.img-card:hover img { filter: grayscale(50%); }

.img-card__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
  z-index: 2;
}

.img-card__title {
  font-family: var(--f-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-white);
}

.img-card__arrow {
  width: 22px;
  height: 22px;
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--c-white);
  font-size: 11px;
  font-weight: 700;
}

/* Photo placeholder */
.photo-ph {
  background: var(--c-surface);
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-ph::before {
  content: "[ " attr(data-slot) " ]";
  font-family: var(--f-display);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-border-d);
  text-transform: uppercase;
}

/* ------------------------------------------------------------- */
/* 12. FOOTER                                                     */
/* ------------------------------------------------------------- */

/* Footer CTA band */
.footer-cta {
  background: var(--c-accent);
  padding: 44px var(--gutter);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.footer-cta .t-label-muted { color: rgba(255,255,255,0.55); }
.footer-cta .t-heading { color: var(--c-white); }

@media (max-width: 767px) {
  .footer-cta { flex-direction: column; align-items: flex-start; }
}

/* Footer body */
.site-footer {
  background: var(--c-black);
  padding: 40px var(--gutter);
}

.footer-grid {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: 56px;
  align-items: start;
  max-width: var(--container);
  margin-inline: auto;
}

.footer-mark {
  font-family: var(--f-display);
  font-size: 110px;
  font-weight: 800;
  color: var(--c-accent);
  line-height: 0.82;
}

.footer-col h4 {
  font-family: var(--f-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--c-gray);
  margin-bottom: 14px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a {
  font-family: var(--f-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--c-gray);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--c-white); }

.footer-bottom {
  max-width: var(--container);
  margin-inline: auto;
  padding-top: 32px;
  border-top: 1px solid var(--c-gray-dd);
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Footer contact form */
.footer-contact {
  border-top: 1px solid var(--c-border);
  padding: 48px var(--gutter);
  max-width: var(--container);
  margin-inline: auto;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr 1fr !important;
  }
  .footer-mark { font-size: 72px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ------------------------------------------------------------- */
/* 13. FORMS                                                      */
/* ------------------------------------------------------------- */
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }

.form-label {
  font-family: var(--f-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-gray-d);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  background: var(--c-surface-w);
  border: 1px solid var(--c-border);
  color: var(--c-black);
  font-family: var(--f-body);
  font-size: 15px;
  padding: 14px 16px;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus { border-color: var(--c-accent); }

.form-input::placeholder,
.form-textarea::placeholder { color: var(--c-gray); }

.form-textarea { min-height: 120px; resize: vertical; }

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- */
/* 14. SCROLL REVEAL                                              */
/* ------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ------------------------------------------------------------- */
/* 15. COUNTERS                                                   */
/* ------------------------------------------------------------- */
[data-count] { font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------- */
/* 16. UTILITIES                                                  */
/* ------------------------------------------------------------- */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link:focus {
  position: fixed; top: 0; left: 0; z-index: 9999;
  width: auto; height: auto; clip: auto;
  padding: 1rem 1.5rem; margin: 0; overflow: visible;
  background: var(--c-accent); color: var(--c-white);
  font-family: var(--f-display); font-size: 14px;
  font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; text-decoration: none;
}

.flex          { display: flex; }
.flex-col      { display: flex; flex-direction: column; }
.gap-xs        { gap: 8px; }
.gap-sm        { gap: 16px; }
.gap-md        { gap: 32px; }
.gap-lg        { gap: 56px; }
.items-center  { align-items: center; }
.items-start   { align-items: flex-start; }
.items-end     { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.self-start    { align-self: flex-start; }
.mt-auto       { margin-top: auto; }
.mb-1          { margin-bottom: 8px; }
.mb-2          { margin-bottom: 16px; }
.mb-3          { margin-bottom: 24px; }
.mb-4          { margin-bottom: 32px; }
.mb-6          { margin-bottom: 48px; }
.w-full        { width: 100%; }

.divider {
  border: none;
  border-top: 1px solid var(--c-border);
}
.dark .divider { border-top-color: var(--c-border-d); }

/* ------------------------------------------------------------- */
/* 17. FOCUS / A11Y                                               */
/* ------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
}

/* ------------------------------------------------------------- */
/* 18. CONTACT POPOVER                                            */
/* ------------------------------------------------------------- */
.header-actions {
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0; white-space: nowrap;
}
.header-actions-sep {
  width: 1px; height: 24px;
  background: var(--c-border);
  margin: 0 0.5rem;
}

.contact-fab {
  flex-shrink: 0;
  width: 38px; height: 38px;
  background: var(--c-accent); color: var(--c-white);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
  padding: 0;
}
.contact-fab:hover { background: var(--c-accent-h); }
.contact-fab svg { width: 18px; height: 18px; }

.contact-popover-overlay {
  position: fixed; inset: 0; z-index: 998;
  background: rgba(13,13,11,0.5);
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s;
}
.contact-popover-overlay.open {
  opacity: 1; pointer-events: auto;
}

.contact-popover {
  position: fixed; z-index: 999;
  width: calc(100% - 2rem); max-width: 360px;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-float);
  padding: 1.25rem;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  opacity: 0; pointer-events: none;
  transition: transform 0.2s var(--ease), opacity 0.15s;
}
.contact-popover.open {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1; pointer-events: auto;
}

@media (min-width: 769px) {
  .contact-popover {
    position: fixed; top: auto; left: auto;
    transform: translateY(8px);
    transition: transform 0.2s var(--ease), opacity 0.15s;
    width: 340px;
  }
  .contact-popover.open { transform: translateY(0); }
  .contact-popover-overlay { display: none; }
}

.popover-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1rem; padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-border);
}
.popover-header h4 {
  font-family: var(--f-head); font-size: 0.9rem;
  font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; margin: 0;
}
.popover-close {
  background: none; border: none; font-size: 1.4rem;
  line-height: 1; color: var(--c-gray-d); cursor: pointer;
}
.popover-close:hover { color: var(--c-accent); }

.popover-contact-card {
  display: flex; align-items: center; gap: 0.75rem;
  border: 1px solid var(--c-border);
  padding: 0.6rem; margin-bottom: 1rem;
}
.popover-avatar {
  width: 44px; height: 44px; overflow: hidden; flex-shrink: 0;
}
.popover-avatar img { width: 100%; height: 100%; object-fit: cover; }
.popover-name {
  font-family: var(--f-head); font-size: 0.9rem; font-weight: 700;
}
.popover-role {
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--c-accent); font-weight: 700;
}

.popover-actions { display: flex; flex-direction: column; gap: 0.4rem; }
.popover-action {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.55rem 0.75rem; font-size: 0.85rem; font-weight: 500;
  color: var(--c-black); background: var(--c-surface-w);
  border: 1px solid var(--c-border);
  text-decoration: none; cursor: pointer; text-align: left; width: 100%;
  transition: border-color 0.15s, background 0.15s;
}
.popover-action svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--c-gray-d); }
.popover-action:hover { border-color: var(--c-accent); background: var(--c-white); }
.popover-action:hover svg { color: var(--c-accent); }

.popover-divider {
  display: flex; align-items: center; justify-content: center;
  margin: 0.75rem 0; font-size: 0.7rem; color: var(--c-gray-d);
  text-transform: uppercase; letter-spacing: 0.1em; gap: 0.5rem;
}
.popover-divider::before, .popover-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--c-border);
}

.popover-callback {
  display: flex; gap: 0.5rem;
}
.popover-callback input {
  flex: 1; border: 2px solid var(--c-border); padding: 0.5rem 0.6rem;
  font-size: 0.85rem; font-family: inherit; outline: none;
}
.popover-callback input:focus { border-color: var(--c-accent); }
.popover-callback .btn { flex-shrink: 0; font-size: 0.8rem; padding: 0.5rem 0.8rem; }
.popover-micro { font-size: 0.7rem; color: var(--c-gray-d); margin-top: 0.4rem; }
.popover-error { font-size: 0.75rem; color: #c00; margin-top: 0.3rem; display: none; }

/* ------------------------------------------------------------- */
/* 19. PRINT                                                      */
/* ------------------------------------------------------------- */
/* no-js fallback — reveal elements visible to crawlers */
.no-js .reveal { opacity: 1 !important; transform: none !important; }

@media print {
  .site-header, .mobile-toggle, .mobile-nav { display: none; }
  body { background: #fff; color: #000; }
}