:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --cream: #fff8f5;
  --cyan: #00e5cc;
  --violet: #9b59ff;
  --text-mid: #4f4f57;
  --text-muted: #74747d;
  --line: rgba(10, 10, 10, 0.18);
  --font-display: "Barlow Condensed", Impact, sans-serif;
  --font-body: "DM Sans", Arial, sans-serif;
  --ease: cubic-bezier(.23, 1, .32, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--black);
  font-family: var(--font-body);
  overflow-x: clip;
}
body, button, a { -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.library-wrap { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.library-eyebrow {
  margin: 0;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 18px;
  font-style: italic;
  font-weight: 800;
  letter-spacing: .22em;
  line-height: 1;
  text-transform: uppercase;
}
.library-gradient-text {
  background: linear-gradient(90deg, var(--cyan), #41b9f5 52%, var(--violet));
  background-size: 180% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: library-shimmer 8s ease-in-out infinite;
}

/* Exact homepage desktop shell. Tablet and mobile are supplied by tfs-header-consistency. */
.urgency-bar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 140;
  background: var(--black);
  color: var(--white);
  border-bottom: 2px solid rgba(255,255,255,.16);
}
.urgency-inner {
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 0 20px;
  text-align: center;
}
.urgency-copy {
  font-family: var(--font-display);
  font-size: 15px;
  font-style: italic;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.urgency-link {
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  white-space: nowrap;
}
#nav {
  position: fixed;
  inset: 44px 0 auto;
  z-index: 100;
  background: rgba(255,248,245,.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform .4s var(--ease), background .3s;
}
#nav.nav-hidden { transform: translateY(-100%); }
#nav .nav-inner {
  height: 112px;
  padding: 0 32px;
  display: grid;
  grid-template-columns: minmax(0,1fr) auto minmax(0,1fr);
  align-items: center;
  gap: 24px;
}
#nav .nav-links { display: flex; align-items: center; gap: 28px; min-width: 0; }
#nav .nav-links a {
  position: relative;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
#nav .nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transition: width .25s var(--ease);
}
#nav .nav-links a:hover::after, #nav .nav-links a:focus-visible::after { width: 100%; }
#nav .nav-logo { grid-column: 2; display: flex; align-items: center; justify-content: center; }
#nav .nav-logo img { width: auto; height: 94px; object-fit: contain; padding: 10px 0; }
#nav .nav-actions { grid-column: 3; justify-self: end; display: flex; align-items: center; gap: 14px; }
#nav .nav-linkedin {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--black);
  color: var(--white);
  border-radius: 6px;
  transition: transform .25s var(--ease), background .25s;
}
#nav .nav-linkedin:hover { transform: translateY(-2px); background: linear-gradient(135deg,var(--cyan),var(--violet)); }
.lang-toggle { display: flex; padding: 3px; gap: 2px; border: 1px solid var(--line); background: rgba(10,10,10,.06); }
.lang-btn {
  padding: 5px 13px;
  border: 0;
  background: none;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.lang-btn.active { background: var(--black); color: var(--white); }
.nav-hamburger, .nav-mobile { display: none; }
.library-button {
  min-height: 56px;
  padding: 14px 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--black);
  background: transparent;
  color: var(--black);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  transition: transform .25s var(--ease), color .25s, background .25s;
}
.library-button.primary { border-color: transparent; background: linear-gradient(90deg,var(--cyan),#55aaff,var(--violet)); }
.library-button:hover, .library-button:focus-visible { transform: translateY(-3px); }
.library-button:focus-visible { outline: 3px solid var(--black); outline-offset: 3px; }
#nav .library-button { min-height: 48px; padding: 12px 20px; font-size: 15px; }

/* Homepage hero family. */
.library-hero {
  position: relative;
  min-height: 800px;
  padding: 258px 0 112px;
  overflow: hidden;
  background:
    radial-gradient(circle at 4% 16%, rgba(0,229,204,.34), transparent 31%),
    radial-gradient(circle at 93% 78%, rgba(155,89,255,.34), transparent 32%),
    var(--cream);
}
.library-hero::before {
  content: "";
  position: absolute;
  inset: -20%;
  background: linear-gradient(115deg,transparent 28%,rgba(255,255,255,.7) 48%,transparent 68%);
  transform: translateX(-50%);
  animation: library-hero-sweep 10s ease-in-out infinite;
  pointer-events: none;
}
.library-hero .library-wrap { position: relative; z-index: 1; }
.library-hero h1 {
  max-width: 1050px;
  margin: 34px 0 36px;
  font-family: var(--font-display);
  font-size: clamp(92px, 10.4vw, 150px);
  font-style: italic;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: .84;
  text-transform: uppercase;
}
.library-hero-bottom {
  display: grid;
  grid-template-columns: minmax(0, 670px) auto;
  align-items: end;
  justify-content: space-between;
  gap: 46px;
}
.library-hero-copy { margin: 0; color: var(--text-mid); font-size: 20px; line-height: 1.65; }
.library-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Product walkthrough family for the two flagship client implementations. */
.flagship-work {
  padding: 118px 0 132px;
  background: var(--black);
  color: var(--white);
}
.section-heading { display: grid; grid-template-columns: 1.05fr .75fr; align-items: end; gap: 64px; margin-bottom: 56px; }
.section-heading h2 {
  max-width: 820px;
  margin: 20px 0 0;
  font-family: var(--font-display);
  font-size: clamp(70px, 7.6vw, 106px);
  font-style: italic;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: .86;
  text-transform: uppercase;
}
.section-heading > p { margin: 0; color: rgba(255,255,255,.66); font-size: 18px; line-height: 1.7; }
.flagship-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; }
.flagship-card {
  position: relative;
  min-width: 0;
  border: 1px solid rgba(255,255,255,.25);
  background: #111;
  overflow: hidden;
  transition: transform .45s var(--ease), border-color .35s, box-shadow .45s;
}
.flagship-card:hover, .flagship-card:focus-within {
  transform: translateY(-10px);
  border-color: var(--cyan);
  box-shadow: 14px 14px 0 rgba(0,229,204,.13);
}
.flagship-media { position: relative; aspect-ratio: 16/10; overflow: hidden; background: #1a1a1a; }
.flagship-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,rgba(0,0,0,.42),transparent 45%);
  pointer-events: none;
}
.flagship-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform .75s var(--ease), filter .4s;
}
.flagship-card:hover .flagship-media img, .flagship-card:focus-within .flagship-media img { transform: scale(1.045); filter: saturate(1.08); }
.flagship-badge {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 18px;
  padding: 8px 11px;
  background: var(--black);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 13px;
  font-style: italic;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.flagship-content { padding: 30px 30px 34px; }
.flagship-content h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(38px,4vw,56px);
  font-style: italic;
  font-weight: 800;
  line-height: .92;
  text-transform: uppercase;
}
.flagship-content p { margin: 0; color: rgba(255,255,255,.68); font-size: 16px; line-height: 1.65; }
.case-link {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.case-link::after { content: "→"; color: var(--cyan); font-size: 24px; transition: transform .25s var(--ease); }
.flagship-card:hover .case-link::after, .flagship-card:focus-within .case-link::after { transform: translateX(8px); }

/* Installed-system grid family, presented as two deliberate pairs. */
.more-work { padding: 132px 0 140px; background: var(--cream); }
.more-work .section-heading { margin-bottom: 62px; }
.more-work .section-heading > p { color: var(--text-mid); }
.system-pair { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; }
.system-pair + .system-pair { margin-top: 54px; }
.system-card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  border: 1px solid var(--black);
  background: var(--white);
  overflow: hidden;
  transition: transform .42s var(--ease), box-shadow .42s, background .35s;
}
.system-card::before {
  content: "";
  position: absolute;
  z-index: 3;
  inset: 0;
  background: linear-gradient(115deg,rgba(0,229,204,.14),rgba(155,89,255,.16));
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s;
}
.system-card:hover, .system-card:focus-within { transform: translateY(-9px); box-shadow: 13px 13px 0 var(--black); }
.system-card:hover::before, .system-card:focus-within::before { opacity: 1; }
.system-media { position: relative; z-index: 1; aspect-ratio: 16/9; overflow: hidden; border-bottom: 1px solid var(--black); background: #f0ece8; }
.system-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .7s var(--ease); }
.system-card:hover .system-media img, .system-card:focus-within .system-media img { transform: scale(1.055); }
.system-index {
  position: absolute;
  z-index: 2;
  top: 16px;
  left: 16px;
  padding: 7px 10px;
  background: var(--black);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 13px;
  font-style: italic;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.system-content { position: relative; z-index: 4; padding: 28px 30px 32px; }
.system-content h3 {
  margin: 0 0 13px;
  font-family: var(--font-display);
  font-size: clamp(34px,3.4vw,48px);
  font-style: italic;
  font-weight: 800;
  line-height: .94;
  text-transform: uppercase;
}
.system-content p { margin: 0; color: var(--text-mid); font-size: 15px; line-height: 1.65; }
.system-card .case-link { color: var(--black); }

.library-cta {
  padding: 118px 0 124px;
  background:
    radial-gradient(circle at 18% 20%,rgba(0,229,204,.27),transparent 34%),
    radial-gradient(circle at 82% 80%,rgba(155,89,255,.28),transparent 34%),
    var(--cream);
  text-align: center;
}
.library-cta h2 {
  max-width: 1080px;
  margin: 24px auto 34px;
  font-family: var(--font-display);
  font-size: clamp(76px,9vw,132px);
  font-style: italic;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: .84;
  text-transform: uppercase;
}
.library-cta p { max-width: 680px; margin: 0 auto 34px; color: var(--text-mid); font-size: 18px; line-height: 1.7; }

/* Exact homepage footer. */
#site-footer { padding: 56px 0 40px; background: var(--black); color: var(--white); }
#site-footer .footer-inner { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1fr; gap: 48px; align-items: start; }
#site-footer .footer-logo { margin-bottom: 12px; }
#site-footer .footer-logo img { width: auto; height: 80px; object-fit: contain; filter: invert(1); }
#site-footer .footer-tagline { max-width: 360px; margin: 0; color: rgba(255,255,255,.4); font-size: 13px; line-height: 1.65; }
#site-footer .footer-col h5 { margin: 0 0 16px; color: rgba(255,255,255,.25); font-family: var(--font-display); font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
#site-footer .footer-col ul { margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; list-style: none; }
#site-footer .footer-col a { color: rgba(255,255,255,.5); font-size: 13px; transition: color .2s; }
#site-footer .footer-col a:hover, #site-footer .footer-col a:focus-visible { color: var(--cyan); }
#site-footer .footer-bottom { margin-top: 48px; padding-top: 24px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; border-top: 1px solid rgba(255,255,255,.08); }
#site-footer .footer-copy { color: rgba(255,255,255,.25); font-size: 12px; }

#scroll-top {
  position: fixed;
  right: 28px;
  bottom: 94px;
  z-index: 180;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.2);
  background: var(--black);
  color: var(--white);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s, transform .25s;
}
#scroll-top.visible { opacity: 1; pointer-events: auto; }
#scroll-top:hover { transform: translateY(-3px); }
#whatsapp-btn {
  position: fixed;
  right: max(18px,env(safe-area-inset-right));
  bottom: 28px;
  z-index: 200;
  min-width: 146px;
  max-width: calc(100vw - 36px);
  height: 54px;
  padding: 0 18px 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid rgba(255,255,255,.22);
  background: #25d366;
  color: var(--white);
  box-shadow: 0 18px 50px rgba(37,211,102,.26);
  font-size: 13px;
  font-weight: 800;
  transition: transform .25s var(--ease), background .25s;
}
#whatsapp-btn::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 7px; height: 2px; background: rgba(255,255,255,.72); }
#whatsapp-btn:hover { transform: translateY(-2px); background: #1ebe5d; }
#whatsapp-btn svg { width: 22px; height: 22px; flex: none; }
.vapi-float { position: fixed; left: 18px; bottom: 18px; z-index: 99999; pointer-events: none; }
.vapi-float vapi-widget { display: block; max-width: calc(100vw - 36px); pointer-events: auto; }

[data-reveal] { opacity: 1; transform: none; animation: library-reveal .7s var(--ease) both; }

@keyframes library-shimmer { 0%,100% { background-position: 0 50%; } 50% { background-position: 100% 50%; } }
@keyframes library-hero-sweep { 0%,20% { transform: translateX(-55%); opacity: 0; } 45% { opacity: .7; } 75%,100% { transform: translateX(55%); opacity: 0; } }
@keyframes library-reveal { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

@media (max-width: 1180px) {
  #nav .nav-links { gap: 18px; }
  #nav .nav-links a { font-size: 14px; }
  #nav .nav-actions .library-button { display: none; }
}
@media (max-width: 1100px) {
  .library-hero { min-height: auto; padding: 120px 0 96px; }
  .library-hero h1 { font-size: clamp(76px,12vw,118px); }
}
@media (max-width: 900px) {
  .library-wrap { width: min(100% - 48px, 720px); }
  .library-hero { padding: 112px 0 90px; }
  .library-hero-bottom, .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .library-actions { align-items: flex-start; }
  .flagship-grid, .system-pair { grid-template-columns: 1fr; }
  .flagship-work, .more-work { padding: 94px 0 104px; }
  .system-pair + .system-pair { margin-top: 36px; }
  #site-footer .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .library-wrap { width: min(100% - 64px, 480px); }
  .library-eyebrow { font-size: 15px; line-height: 1.35; }
  .library-hero { padding: 96px 0 76px; }
  .library-hero h1 { margin: 28px 0 30px; font-size: clamp(58px,17vw,74px); line-height: .88; }
  .library-hero-copy { font-size: 17px; line-height: 1.65; }
  .library-actions, .library-button { width: 100%; }
  .section-heading h2 { font-size: clamp(54px,15vw,72px); }
  .section-heading > p { font-size: 16px; }
  .flagship-work, .more-work { padding: 78px 0 86px; }
  .flagship-grid, .system-pair { gap: 24px; }
  .system-pair + .system-pair { margin-top: 34px; }
  .flagship-content, .system-content { padding: 25px 24px 28px; }
  .flagship-content h3 { font-size: 42px; }
  .system-content h3 { font-size: 38px; }
  .library-cta { padding: 88px 0 94px; }
  .library-cta h2 { font-size: clamp(58px,17vw,78px); }
  #site-footer .footer-inner { grid-template-columns: 1fr; text-align: center; }
  #site-footer .footer-tagline { margin-inline: auto; }
  #site-footer .footer-bottom { justify-content: center; text-align: center; }
  #whatsapp-btn, .vapi-float, #vapi-widget { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
}