/* ============================================================
   Y5 LABS — DESIGN SYSTEM
   Deep dark + electric blue + white. Confident, minimal, technical.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
  /* ---- Brand color tokens ---- */
  --y5-bg:            #080B12;   /* primary dark */
  --y5-bg-alt:         #101522;  /* secondary dark surface */
  --y5-surface:        #131A28;  /* card surface on dark */
  --y5-surface-2:      #171F30;  /* hover surface on dark */
  --y5-light:          #F7F9FC;  /* primary light bg */
  --y5-white:          #FFFFFF;
  --y5-blue:           #2563EB;  /* electric blue accent */
  --y5-blue-bright:    #60A5FA;  /* bright highlight */
  --y5-blue-subtle:    #EFF6FF;  /* subtle tint on light bg */
  --y5-blue-glow:      rgba(37, 99, 235, 0.35);

  /* ---- Ink scale (text) ---- */
  --ink-on-dark-1:     #F7F9FC;  /* primary text on dark */
  --ink-on-dark-2:     #AEB8CC;  /* secondary text on dark */
  --ink-on-dark-3:     #6C7690;  /* tertiary / muted on dark */
  --ink-on-light-1:    #0B0F19;  /* primary text on light */
  --ink-on-light-2:    #4B5567;  /* secondary text on light */
  --ink-on-light-3:    #8A93A6;  /* tertiary / muted on light */

  /* ---- Borders ---- */
  --border-dark:       rgba(247, 249, 252, 0.09);
  --border-dark-strong: rgba(247, 249, 252, 0.16);
  --border-light:       rgba(11, 15, 25, 0.08);
  --border-light-strong: rgba(11, 15, 25, 0.14);

  /* ---- Theme-aware surfaces (swap under prefers-color-scheme: light) ---- */
  --header-bg:          rgba(8,11,18,0.72);
  --y5-blue-subtle-dark: rgba(37,99,235,0.12);

  /* ---- Status colors (swap for readability on light backgrounds) ---- */
  --status-error-bg:     rgba(239,68,68,0.1);
  --status-error-border: rgba(239,68,68,0.35);
  --status-error-text:   #FCA5A5;
  --status-success-bg:     rgba(34,197,94,0.1);
  --status-success-border: rgba(34,197,94,0.35);
  --status-success-text:   #86EFAC;
  --status-draft-bg:   rgba(234,179,8,0.12);
  --status-draft-text: #FACC15;
  --status-published-bg:   rgba(34,197,94,0.12);
  --status-published-text: #4ADE80;

  /* ---- Logo (swapped per theme so it stays visible on the background) ---- */
  --logo-current: url('/assets/images/logo-light.png');

  /* ---- Type ---- */
  --font-display: 'Manrope', 'Inter', -apple-system, sans-serif;
  --font-body:    'Inter', -apple-system, sans-serif;

  /* ---- Radius & shadow (restrained, not "excessive rounded cards") ---- */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --shadow-soft: 0 1px 2px rgba(8,11,18,0.06), 0 8px 24px rgba(8,11,18,0.06);
  --shadow-glow: 0 0 0 1px rgba(37,99,235,0.25), 0 0 40px rgba(37,99,235,0.18);

  /* ---- Layout ---- */
  --container-max: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(72px, 10vw, 140px);

  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ---------------------------------------------------------
   Light mode — follows the visitor's OS/browser preference.
   Default (no @media match, or prefers-color-scheme: dark) stays
   the original dark theme above; nothing needs to change for that.
--------------------------------------------------------- */
@media (prefers-color-scheme: light) {
  :root {
    --y5-bg:            #F7F9FC;
    --y5-bg-alt:        #FFFFFF;
    --y5-surface:       #FFFFFF;
    --y5-surface-2:     #F1F4F9;

    --ink-on-dark-1:    #0B0F19;
    --ink-on-dark-2:    #4B5567;
    --ink-on-dark-3:    #8A93A6;

    --border-dark:        rgba(11, 15, 25, 0.08);
    --border-dark-strong: rgba(11, 15, 25, 0.14);

    --header-bg:           rgba(247, 249, 252, 0.78);
    --y5-blue-subtle-dark: #EFF6FF;

    --status-error-bg:     rgba(239,68,68,0.08);
    --status-error-border: rgba(239,68,68,0.3);
    --status-error-text:   #B91C1C;
    --status-success-bg:     rgba(34,197,94,0.08);
    --status-success-border: rgba(34,197,94,0.3);
    --status-success-text:   #15803D;
    --status-draft-bg:   rgba(234,179,8,0.14);
    --status-draft-text: #A16207;
    --status-published-bg:   rgba(34,197,94,0.12);
    --status-published-text: #15803D;

    --logo-current: url('/assets/images/logo-dark.png');
  }
}

/* ---------------------------------------------------------
   Reset
--------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--y5-bg);
  color: var(--ink-on-dark-1);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
/* Safety net: every inline SVG icon on the site is sized by its
   specific component rule (e.g. `.iso-icon svg { width:20px }`).
   This fallback guarantees that even if a specific rule is ever
   missing, overridden, or fails to load, no icon can render larger
   than the box that contains it — so a broken/huge icon is no
   longer possible. */
svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
h1,h2,h3,h4,h5,h6 { margin: 0; font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; color: inherit; }
p { margin: 0; }

@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;
    scroll-behavior: auto !important;
  }
}

/* Visible keyboard focus everywhere */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--y5-blue-bright);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------------------------------------------------------
   Layout primitives
--------------------------------------------------------- */
.container { max-width: var(--container-max); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(48px, 6vw, 88px); }
.section--light { background: var(--y5-light); color: var(--ink-on-light-1); }
.section--alt-dark { background: var(--y5-bg-alt); }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--y5-blue-bright);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--y5-blue-bright);
  box-shadow: 0 0 12px var(--y5-blue-bright);
}
.section--light .eyebrow { color: var(--y5-blue); }

.h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.03; }
.h2 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.08; }
.h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); line-height: 1.2; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--ink-on-dark-2); line-height: 1.6; max-width: 46em; }
.section--light .lede { color: var(--ink-on-light-2); }

.eyebrow-row { display:flex; align-items:center; justify-content:space-between; gap: 24px; flex-wrap: wrap; }

/* ---------------------------------------------------------
   Buttons
--------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform .35s var(--ease-out), background .25s ease, border-color .25s ease, box-shadow .25s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; transition: transform .35s var(--ease-out); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  background: var(--y5-blue);
  color: #fff;
  box-shadow: 0 0 0 1px rgba(37,99,235,0.4), 0 8px 30px -6px var(--y5-blue-glow);
}
.btn--primary:hover { background: #3b74f0; transform: translateY(-1px); }

.btn--ghost-dark {
  background: transparent;
  color: var(--ink-on-dark-1);
  border-color: var(--border-dark-strong);
}
.btn--ghost-dark:hover { border-color: var(--y5-blue-bright); color: var(--y5-blue-bright); }

.btn--ghost-light {
  background: transparent;
  color: var(--ink-on-light-1);
  border-color: var(--border-light-strong);
}
.btn--ghost-light:hover { border-color: var(--y5-blue); color: var(--y5-blue); }

.btn--sm { padding: 10px 18px; font-size: 13.5px; }
.btn--block { width: 100%; justify-content: center; }

/* ---------------------------------------------------------
   Navigation
--------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  padding: 18px 0;
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-dark);
  transition: padding .3s ease;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.social-icons { display: flex; gap: 12px; margin-top: 18px; }
.social-icons a {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--y5-surface); border: 1px solid var(--border-dark);
  color: var(--ink-on-dark-2);
  transition: color .2s var(--ease-out), border-color .2s var(--ease-out), transform .2s var(--ease-out);
}
.social-icons a:hover { color: var(--y5-blue-bright); border-color: var(--y5-blue-bright); transform: translateY(-2px); }

.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 150;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  transition: transform .2s var(--ease-out);
}
.whatsapp-float:hover { transform: scale(1.08); }
@media (max-width: 640px) {
  .whatsapp-float { right: 14px; bottom: 14px; width: 46px; height: 46px; }
  .whatsapp-float svg { width: 22px; height: 22px; }
}

/* Robot intro (homepage only) */
#y5-robot-stage {
  position: fixed;
  inset: 0;
  z-index: 140;
  pointer-events: none;
  overflow: hidden;
}
#y5-robot {
  position: absolute;
  bottom: 96px;
  right: -140px;
  width: 74px;
  height: 90px;
}
.y5r-antenna-dot {
  position: absolute; top: -10px; left: 33px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--y5-blue-bright);
}
.y5r-antenna-stick {
  position: absolute; top: -4px; left: 36px;
  width: 2px; height: 10px; background: var(--y5-blue-bright);
}
#y5r-head {
  position: absolute; top: 4px; left: 12px;
  width: 50px; height: 40px;
  background: #1B2333; border: 2px solid var(--y5-blue);
  border-radius: 12px;
}
.y5r-eye {
  position: absolute; top: 14px; width: 9px; height: 9px;
  border-radius: 50%; background: var(--y5-blue-bright);
}
.y5r-brow {
  position: absolute; top: 8px; width: 12px; height: 2px;
  background: var(--y5-blue-bright); border-radius: 2px;
  transform: rotate(0deg); transition: transform .3s ease;
}
#y5r-browL { transform-origin: left center; }
#y5r-browR { transform-origin: right center; }
.y5r-body {
  position: absolute; top: 46px; left: 17px;
  width: 40px; height: 34px;
  background: #131B2B; border: 2px solid var(--y5-blue);
  border-radius: 8px;
}
.y5r-leg {
  position: absolute; bottom: 0; width: 8px; height: 14px;
  background: var(--y5-blue); border-radius: 3px;
  transform-origin: top center;
}
#y5-robot-bubble {
  position: absolute;
  bottom: 190px;
  right: 60px;
  max-width: 220px;
  background: var(--y5-surface);
  color: var(--ink-on-dark-1);
  border: 1px solid var(--border-dark);
  font-size: 13px;
  line-height: 1.4;
  padding: 10px 14px;
  border-radius: 10px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .3s ease, transform .3s ease;
}
@media (max-width: 640px) {
  #y5-robot-bubble { right: 16px; max-width: 180px; bottom: 178px; }
  #y5-robot { bottom: 84px; }
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; font-size: 19px; letter-spacing: -0.01em; color: var(--ink-on-dark-1); }
.brand .brand-mark { width: 30px; height: 30px; flex-shrink: 0; }

/* Logo: two images in the markup, CSS shows the right one per theme */
.brand-logo {
  height: 34px;
  max-height: 34px;
  width: auto;
  max-width: 140px;
  object-fit: contain;
  display: block;
}
.logo-on-dark { display: block; }
.logo-on-light { display: none; }
@media (prefers-color-scheme: light) {
  .logo-on-dark { display: none; }
  .logo-on-light { display: block; }
}
.site-footer .brand-logo { height: 40px; max-height: 40px; }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-on-dark-2);
  border-radius: var(--radius-sm);
  transition: color .2s ease, background .2s ease;
}
.nav-links a:hover, .nav-links a.is-active { color: var(--ink-on-dark-1); background: var(--y5-surface); }

.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; }

/* ---- Language switcher ---- */
.lang-switcher { position: relative; }
.lang-switcher-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 12px;
  background: var(--y5-surface); border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm); color: var(--ink-on-dark-2);
  font-size: 13px; font-weight: 600; letter-spacing: .02em;
  transition: color .2s ease, border-color .2s ease;
}
.lang-switcher-btn:hover { color: var(--ink-on-dark-1); border-color: var(--border-dark-strong); }
.lang-switcher-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 140px; background: var(--y5-surface); border: 1px solid var(--border-dark);
  border-radius: var(--radius-md); box-shadow: var(--shadow-soft);
  padding: 6px; display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  z-index: 50;
}
.lang-switcher.is-open .lang-switcher-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-switcher-menu a {
  padding: 8px 10px; border-radius: var(--radius-sm); font-size: 13.5px;
  color: var(--ink-on-dark-2);
}
.lang-switcher-menu a:hover { background: var(--y5-surface-2); color: var(--ink-on-dark-1); }
.lang-switcher-menu a.is-active { color: var(--y5-blue-bright); font-weight: 600; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle {
    display: inline-flex; align-items:center; justify-content:center;
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    background: var(--y5-surface); border: 1px solid var(--border-dark);
  }
  .nav-toggle svg { width: 18px; height: 18px; }
  .nav-right .btn--primary.btn--sm { padding: 9px 14px; font-size: 13px; }
  .lang-switcher-btn span { display: none; }
  .lang-switcher-btn { width: 36px; padding: 0; justify-content: center; }
}

.mobile-menu {
  position: fixed; inset: 0; z-index: 200;
  background: var(--y5-bg);
  display: flex; flex-direction: column;
  padding: 20px var(--gutter) 40px;
  transform: translateY(-100%);
  transition: transform .4s var(--ease-out);
}
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu-top { display:flex; align-items:center; justify-content:space-between; padding-bottom: 20px; border-bottom: 1px solid var(--border-dark); }
.mobile-menu-close { width: 40px; height: 40px; border-radius: var(--radius-sm); background: var(--y5-surface); border: 1px solid var(--border-dark); display:flex; align-items:center; justify-content:center; }
.mobile-menu-links { display: flex; flex-direction: column; margin-top: 24px; }
.mobile-menu-links a { padding: 18px 4px; font-size: 26px; font-family: var(--font-display); font-weight: 700; border-bottom: 1px solid var(--border-dark); }
.mobile-menu-cta { margin-top: 28px; }

/* ---------------------------------------------------------
   Hero + signature system visual
--------------------------------------------------------- */
.hero {
  position: relative;
  padding-top: clamp(72px, 12vw, 140px);
  padding-bottom: clamp(56px, 8vw, 100px);
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-dark) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, black 30%, transparent 75%);
  pointer-events: none;
}

/* ---------------------------------------------------------
   Hero: always-on ambient background animation
   (glowing drifting blobs + slow-moving grid + rising particles)
--------------------------------------------------------- */
.hero-grid-bg--animated {
  animation: hero-grid-drift 26s linear infinite;
}
@keyframes hero-grid-drift {
  0%   { background-position: 0px 0px, 0px 0px; }
  100% { background-position: 64px 128px, 64px 128px; }
}

.hero-anim-bg {
  position: absolute; inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero-anim-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  background: radial-gradient(circle at 30% 30%, var(--y5-blue-bright), var(--y5-blue) 55%, transparent 75%);
  opacity: 0.35;
  will-change: transform;
}
.hero-anim-blob--1 {
  width: 380px; height: 380px;
  top: -120px; left: -80px;
  animation: hero-blob-float-a 18s ease-in-out infinite;
}
.hero-anim-blob--2 {
  width: 300px; height: 300px;
  top: 10%; right: -100px;
  animation: hero-blob-float-b 22s ease-in-out infinite;
}
.hero-anim-blob--3 {
  width: 260px; height: 260px;
  bottom: -100px; left: 30%;
  animation: hero-blob-float-c 20s ease-in-out infinite;
}
@keyframes hero-blob-float-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%      { transform: translate(60px, 40px) scale(1.1); }
  66%      { transform: translate(-30px, 70px) scale(0.95); }
}
@keyframes hero-blob-float-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-70px, 50px) scale(1.15); }
}
@keyframes hero-blob-float-c {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(50px, -60px) scale(1.08); }
}

.hero-anim-particle {
  position: absolute;
  bottom: -10px;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--y5-blue-bright);
  box-shadow: 0 0 8px 2px var(--y5-blue-glow);
  opacity: 0;
  animation: hero-particle-rise 7s linear infinite;
}
@keyframes hero-particle-rise {
  0%   { transform: translateY(0) scale(0.8); opacity: 0; }
  10%  { opacity: 0.9; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-420px) scale(1.2); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-grid-bg--animated,
  .hero-anim-blob,
  .hero-anim-particle {
    animation: none !important;
  }
}

.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero h1 { margin-bottom: 22px; }
.hero h1 .accent { color: var(--y5-blue-bright); }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

.hero-system {
  position: relative;
  margin-top: clamp(40px, 6vw, 70px);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--y5-surface), var(--y5-bg-alt));
  overflow: hidden;
}
.hero-system canvas { display: block; width: 100%; height: 100%; }
.hero-system-labels {
  position: absolute; inset: 0;
  display: flex; align-items: flex-end;
  padding: 20px clamp(16px, 3vw, 36px);
  pointer-events: none;
}
.hero-system-labels ul { display: flex; gap: clamp(18px, 5vw, 64px); width: 100%; justify-content: space-between; }
.hero-system-labels li { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-on-dark-3); }
.hero-system-labels li.is-active { color: var(--y5-blue-bright); text-shadow: 0 0 16px var(--y5-blue-glow); }

/* ---------------------------------------------------------
   Cards: services, projects, blog, industries
--------------------------------------------------------- */
.card {
  background: var(--y5-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: border-color .3s ease, transform .3s var(--ease-out), background .3s ease;
}
.card:hover { border-color: var(--border-dark-strong); background: var(--y5-surface-2); transform: translateY(-3px); }

.service-card { display:flex; flex-direction:column; gap: 18px; position: relative; }
.service-card .icon-badge {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  background: var(--y5-blue-subtle-dark);
  display:flex; align-items:center; justify-content:center;
  color: var(--y5-blue-bright);
}
.service-card .icon-badge svg { width: 22px; height: 22px; }
.service-card h3 { font-size: 1.1rem; }
.service-card p { color: var(--ink-on-dark-2); font-size: 14.5px; }
.service-card .card-link { margin-top: auto; font-size: 13.5px; font-weight: 600; color: var(--y5-blue-bright); display:flex; align-items:center; gap:6px; }
.service-card .card-link svg { width: 14px; height: 14px; transition: transform .3s var(--ease-out); }

/* ============================================================
   Technology Ecosystem — interactive tabbed marquee
   (scoped to .tech-ecosystem; does not affect other sections)
   ============================================================ */
.tech-ecosystem { position: relative; }
.tech-switcher { position: relative; }

.tech-tabs {
  position: relative; display: inline-flex; gap: 4px; padding: 6px;
  background: var(--y5-surface); border: 1px solid var(--border-dark);
  border-radius: 100px; margin-bottom: 28px;
}
.tech-tabs-indicator {
  position: absolute; top: 6px; left: 6px; height: calc(100% - 12px);
  border-radius: 100px; background: var(--y5-blue);
  opacity: 0; z-index: 0;
  transition: transform .45s var(--ease-out), width .45s var(--ease-out), opacity .3s ease;
}
.tech-tab {
  position: relative; z-index: 1; padding: 9px 20px; border-radius: 100px;
  font-size: 13.5px; font-weight: 600; color: var(--ink-on-dark-2);
  background: transparent; border: none; cursor: pointer; white-space: nowrap;
  transition: color .3s ease; font-family: inherit;
}
.tech-tab.is-active { color: #fff; }
.tech-tab:hover:not(.is-active) { color: var(--ink-on-dark-1); }

.tech-stage {
  position: relative; overflow: hidden;
  padding: 40px 0 32px;
  display: flex; flex-direction: column; align-items: center; gap: 28px;
}
.tech-stage::before {
  content: ''; position: absolute; top: -40%; left: 50%; width: 70%; height: 200%;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(37,99,235,.14), transparent 70%);
  pointer-events: none;
}

.tech-stage-icon { position: relative; width: 72px; height: 72px; z-index: 1; }
.tech-hero-icon {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); background: var(--y5-blue-subtle-dark); color: var(--y5-blue-bright);
  opacity: 0; transform: scale(.7) rotate(-8deg);
  transition: opacity .45s var(--ease-out), transform .45s var(--ease-out);
}
.tech-hero-icon svg { width: 32px; height: 32px; }
.tech-hero-icon.is-active { opacity: 1; transform: scale(1) rotate(0); box-shadow: 0 0 32px var(--y5-blue-glow); }

.tech-marquee-mask {
  position: relative; width: 100%; overflow: hidden; z-index: 1;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.tech-marquee-track {
  display: flex; gap: 14px; width: max-content;
  animation: tech-marquee 26s linear infinite;
  transition: opacity .25s ease;
}
.tech-marquee-mask:hover .tech-marquee-track { animation-play-state: paused; }
@keyframes tech-marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.tech-chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px;
  border-radius: 100px; border: 1px solid var(--border-dark); background: var(--y5-surface-2);
  color: var(--ink-on-dark-1); font-size: 14px; font-weight: 600; white-space: nowrap;
  transition: border-color .3s ease, transform .3s ease, background .3s ease;
}
.tech-chip svg { width: 15px; height: 15px; color: var(--y5-blue-bright); flex-shrink: 0; }
.tech-chip:hover { border-color: var(--y5-blue-bright); transform: translateY(-2px); background: var(--y5-blue-subtle-dark); }

@media (max-width: 640px) {
  .tech-tabs { display: flex; flex-wrap: wrap; justify-content: center; border-radius: var(--radius-md); }
  .tech-tabs-indicator { display: none; }
  .tech-tab.is-active { background: var(--y5-blue); border-radius: 100px; }
}

@media (prefers-reduced-motion: reduce) {
  .tech-marquee-track { animation: none !important; }
}
.service-card:hover .card-link svg { transform: translateX(3px); }

.category-tabs { display:flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }
.category-tab {
  padding: 9px 18px; border-radius: 100px; font-size: 13.5px; font-weight: 600;
  border: 1px solid var(--border-dark); color: var(--ink-on-dark-2);
  transition: all .2s ease;
}
.category-tab.is-active, .category-tab:hover { border-color: var(--y5-blue); color: var(--y5-blue-bright); background: rgba(37,99,235,0.08); }

/* Project / case-study editorial card */
.project-card {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 0;
  border: 1px solid var(--border-dark); border-radius: var(--radius-lg);
  overflow: hidden; background: var(--y5-surface);
  transition: border-color .3s ease;
}
.project-card:hover { border-color: var(--border-dark-strong); }
.project-card .pc-media { position: relative; aspect-ratio: 4/3; background: var(--y5-bg-alt); overflow: hidden; }
.project-card .pc-media img { width:100%; height:100%; object-fit: cover; transition: transform .6s var(--ease-out); }
.project-card:hover .pc-media img { transform: scale(1.04); }
.project-card .pc-body { padding: clamp(24px, 3vw, 44px); display:flex; flex-direction:column; }
.project-card .pc-tags { display:flex; gap:8px; margin-bottom: 16px; flex-wrap: wrap; }
.project-card .pc-tag { font-size: 11.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--y5-blue-bright); background: rgba(37,99,235,0.1); padding: 5px 10px; border-radius: 100px; }
.project-card h3 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); margin-bottom: 14px; }
.project-card .pc-row { display:grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--border-dark); }
.project-card .pc-row .label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-on-dark-3); margin-bottom: 6px; }
.project-card .pc-row .value { font-size: 13.5px; color: var(--ink-on-dark-2); }
.project-card .pc-cta { margin-top: 24px; }
@media (max-width: 780px) { .project-card { grid-template-columns: 1fr; } }

/* Blog card */
.blog-card { display:flex; flex-direction:column; }
.blog-card .bc-media { aspect-ratio: 16/10; border-radius: var(--radius-md); overflow: hidden; background: var(--y5-bg-alt); margin-bottom: 18px; }
.blog-card .bc-media img { width:100%; height:100%; object-fit:cover; transition: transform .5s var(--ease-out); }
.blog-card:hover .bc-media img { transform: scale(1.05); }
.blog-card .bc-meta { display:flex; gap: 10px; align-items:center; font-size: 12.5px; color: var(--ink-on-dark-3); margin-bottom: 10px; text-transform: uppercase; letter-spacing: .04em; }
.blog-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.blog-card p { color: var(--ink-on-dark-2); font-size: 14px; }

/* Industry chip grid */
.industry-card { padding: 26px; border: 1px solid var(--border-dark); border-radius: var(--radius-md); transition: border-color .25s ease, background .25s ease; }
.industry-card:hover { border-color: var(--y5-blue); background: rgba(37,99,235,0.06); }
.industry-card h4 { font-size: 1rem; margin-bottom: 6px; }
.industry-card p { color: var(--ink-on-dark-2); font-size: 13.5px; }

/* Process steps (numbering IS meaningful — a real sequence) */
/* Scroll-story: a progress rail fills as the section scrolls, and steps
   light up one at a time — driven by --story-progress set from JS. */
.process-list {
  display:flex; flex-direction:column; position: relative;
  padding-left: 28px;
}
.process-list::before {
  content:''; position:absolute; left:0; top:6px; bottom:6px; width:2px;
  background: var(--border-dark);
}
.process-list::after {
  content:''; position:absolute; left:0; top:6px; width:2px;
  height: calc(var(--story-progress, 0) * 1%);
  background: linear-gradient(var(--y5-blue-bright), var(--y5-blue));
  box-shadow: 0 0 10px var(--y5-blue-glow);
  transition: height .12s linear;
}
.process-step {
  display:grid; grid-template-columns: 90px 1fr; gap: 24px;
  padding: 32px 0; border-top: 1px solid var(--border-dark);
  opacity: .4; transition: opacity .5s var(--ease-out);
}
.process-step:last-child { border-bottom: 1px solid var(--border-dark); }
.process-step.is-story-active { opacity: 1; }
.process-step .step-no {
  font-family: var(--font-display); font-size: 15px; font-weight: 700; color: var(--y5-blue-bright);
  transition: transform .4s var(--ease-out), color .4s ease;
}
.process-step.is-story-active .step-no { transform: scale(1.2); color: var(--y5-white); }
.process-step h3 { font-size: 1.3rem; margin-bottom: 8px; }
.process-step p { color: var(--ink-on-dark-2); max-width: 46em; }
@media (max-width: 640px) { .process-step { grid-template-columns: 1fr; gap: 8px; } }

/* Automation flow diagram */
.flow-diagram { display:flex; flex-wrap: wrap; align-items:center; gap: 0; justify-content: center; padding: 20px 0; }
.flow-node {
  padding: 14px 20px; border: 1px solid var(--border-dark-strong); border-radius: var(--radius-sm);
  background: var(--y5-surface); font-size: 13.5px; font-weight: 600; white-space: nowrap;
  position: relative;
}
.flow-node.is-highlight { border-color: var(--y5-blue); color: var(--y5-blue-bright); box-shadow: var(--shadow-glow); }
.flow-arrow { width: 34px; height: 1px; background: var(--border-dark-strong); position: relative; margin: 0 6px; }
.flow-arrow::after { content:''; position:absolute; right:-1px; top:-3px; width:7px; height:7px; border-right:1px solid var(--border-dark-strong); border-bottom:1px solid var(--border-dark-strong); transform: rotate(-45deg); }
@media (max-width: 780px) { .flow-diagram { flex-direction: column; } .flow-arrow { width: 1px; height: 24px; } .flow-arrow::after{ right:-3px; top:auto; bottom:-1px; transform: rotate(45deg);} }

/* ============================================================
   KINETIC TYPOGRAPHY
   Headings are split word-by-word by JS (scroll-story.js) into
   .kinetic-word > .kinetic-word-i pairs, then revealed with a
   staggered rise as the heading scrolls into view.
   ============================================================ */
.kinetic-word { display: inline-block; overflow: hidden; vertical-align: top; }
.kinetic-word-i {
  display: inline-block;
  transform: translateY(115%);
  opacity: 0;
  transition: transform .7s var(--ease-out), opacity .5s ease;
  transition-delay: var(--kw-delay, 0s);
}
.kinetic-ready.is-kinetic-in .kinetic-word-i { transform: translateY(0); opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .kinetic-word-i { transition: none; transform: none; opacity: 1; }
}

/* ============================================================
   3D ISOMETRIC DIAGRAM
   Pure-CSS layered stack (no images) — auto-floats, tilts toward
   the cursor, and each layer lifts into place on scroll.
   ============================================================ */
.iso-diagram {
  --iso-rx: -32deg; --iso-ry: 42deg; --iso-mx: 0deg; --iso-my: 0deg;
  perspective: 1400px;
  padding: 56px 0 36px;
  display: flex; justify-content: center;
}
.iso-diagram-stage {
  position: relative;
  width: min(420px, 78vw);
  height: 300px;
  transform-style: preserve-3d;
  transform: rotateX(calc(var(--iso-rx) + var(--iso-my))) rotateZ(calc(var(--iso-ry) + var(--iso-mx)));
  transition: transform .3s ease-out;
  animation: iso-float 6s ease-in-out infinite;
}
@keyframes iso-float {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -10px; }
}
.iso-layer {
  position: absolute;
  left: 50%; top: 50%;
  width: 230px; height: 230px;
  margin: -115px 0 0 -115px;
  border-radius: 20px;
  border: 1px solid var(--border-dark-strong);
  background: linear-gradient(155deg, var(--y5-surface-2), var(--y5-surface));
  box-shadow: 0 0 0 1px rgba(255,255,255,0.02) inset, 0 30px 60px rgba(0,0,0,0.45);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  opacity: 0; transform: translateZ(-120px) scale(.82);
  --split-x: 0px; --split-y: 0px; --split-rot: 0deg; --layer-scale: 1;
  cursor: pointer;
  transition: opacity .8s var(--ease-out), transform .55s cubic-bezier(.34,1.56,.4,1), border-color .3s, box-shadow .3s;
  transition-delay: var(--iso-delay, 0s);
}
.iso-diagram.is-iso-in .iso-layer {
  opacity: 1;
  transform: translateZ(var(--iso-z, 0px)) translate(var(--split-x), var(--split-y)) rotate(var(--split-rot)) scale(var(--layer-scale));
}

/* Split state: tap/click the stack to fan the four layers apart */
.iso-diagram.is-split .iso-layer,
.iso-diagram.is-active .iso-layer {
  transition-delay: calc(var(--iso-delay, 0s) * .3);
}
.iso-diagram.is-split .iso-layer:nth-child(1) { --split-x: 0px;    --split-y: -118px; --split-rot: -6deg; }
.iso-diagram.is-split .iso-layer:nth-child(2) { --split-x: -104px; --split-y: -14px;  --split-rot: -3deg; }
.iso-diagram.is-split .iso-layer:nth-child(3) { --split-x: 104px;  --split-y: 44px;   --split-rot: 3deg; }
.iso-diagram.is-split .iso-layer:nth-child(4) { --split-x: 0px;    --split-y: 140px;  --split-rot: 6deg; }

/* Active state: a specific split-open layer is tapped and comes forward */
.iso-diagram.is-active .iso-layer { opacity: .45; --layer-scale: .8; }
.iso-diagram.is-active .iso-layer.is-active-layer {
  opacity: 1; --layer-scale: 1.12;
  --split-x: 0px; --split-y: 0px; --split-rot: 0deg;
  z-index: 40;
  border-color: var(--y5-blue);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.02) inset, 0 0 40px var(--y5-blue-glow), 0 30px 60px rgba(0,0,0,0.45);
}
@media (max-width: 640px) {
  .iso-diagram.is-split .iso-layer:nth-child(1) { --split-x: 0px;   --split-y: -92px; }
  .iso-diagram.is-split .iso-layer:nth-child(2) { --split-x: -82px; --split-y: -10px; }
  .iso-diagram.is-split .iso-layer:nth-child(3) { --split-x: 82px;  --split-y: 34px; }
  .iso-diagram.is-split .iso-layer:nth-child(4) { --split-x: 0px;   --split-y: 108px; }
}
.iso-layer .iso-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display:flex; align-items:center; justify-content:center;
  background: var(--y5-blue-subtle-dark); color: var(--y5-blue-bright);
  box-shadow: 0 0 24px var(--y5-blue-glow);
}
.iso-layer .iso-icon svg { width: 20px; height: 20px; }
.iso-layer .iso-label { font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--ink-on-dark-1); }
.iso-layer .iso-sub { font-size: 11.5px; color: var(--ink-on-dark-3); text-align:center; padding: 0 20px; }
.iso-layer.is-accent { border-color: var(--y5-blue); box-shadow: 0 0 0 1px rgba(255,255,255,0.02) inset, 0 0 40px var(--y5-blue-glow), 0 30px 60px rgba(0,0,0,0.45); }
.iso-diagram-stage::before {
  content: '';
  position: absolute; left: 50%; top: 50%;
  width: 230px; height: 230px; margin: -115px 0 0 -115px;
  border-radius: 20px; border: 1px dashed var(--border-dark);
  transform: translateZ(-220px);
}
@media (max-width: 640px) {
  .iso-diagram-stage { width: min(300px, 84vw); height: 240px; }
  .iso-layer { width: 180px; height: 180px; margin: -90px 0 0 -90px; }
  .iso-diagram-stage::before { width: 180px; height: 180px; margin: -90px 0 0 -90px; }
}
@media (prefers-reduced-motion: reduce) {
  .iso-diagram-stage { animation: none; }
  .iso-layer { transition: opacity .4s ease; transform: translateZ(var(--iso-z, 0px)) scale(1) !important; }
}

/* ---------------------------------------------------------
   Forms
--------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display:flex; flex-direction:column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-on-dark-2); }
.field input, .field select, .field textarea {
  background: var(--y5-bg-alt); border: 1px solid var(--border-dark-strong);
  border-radius: var(--radius-sm); padding: 13px 14px; color: var(--ink-on-dark-1);
  font-family: var(--font-body); font-size: 14.5px; transition: border-color .2s ease;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-on-dark-3); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--y5-blue); outline: none; }
.field textarea { resize: vertical; min-height: 130px; }
.form-error { background: var(--status-error-bg); border: 1px solid var(--status-error-border); color: var(--status-error-text); padding: 14px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px; }
.form-success { background: var(--status-success-bg); border: 1px solid var(--status-success-border); color: var(--status-success-text); padding: 14px 16px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 20px; }

/* ---------------------------------------------------------
   Footer
--------------------------------------------------------- */
.site-footer { background: var(--y5-bg-alt); border-top: 1px solid var(--border-dark); padding-block: 72px 32px; }
.footer-top { display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
@media (max-width: 780px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-top { grid-template-columns: 1fr; } }
.footer-brand p { color: var(--ink-on-dark-2); margin-top: 14px; max-width: 32em; font-size: 14.5px; }
.footer-col h5 { font-size: 12.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-on-dark-3); margin-bottom: 16px; }
.footer-col a, .footer-col li { display:block; font-size: 14.5px; color: var(--ink-on-dark-2); margin-bottom: 10px; }
.footer-col a:hover { color: var(--y5-blue-bright); }
.footer-bottom { display:flex; align-items:center; justify-content:space-between; flex-wrap: wrap; gap: 16px; padding-top: 28px; border-top: 1px solid var(--border-dark); font-size: 13px; color: var(--ink-on-dark-3); }
.footer-social { display:flex; gap: 14px; }

/* ---------------------------------------------------------
   Misc utility
--------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.divider { height: 1px; background: var(--border-dark); border: 0; margin: 0; }
.badge { display:inline-block; font-size: 11.5px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: 5px 10px; border-radius: 100px; }
.badge--draft { background: var(--status-draft-bg); color: var(--status-draft-text); }
.badge--published { background: var(--status-published-bg); color: var(--status-published-text); }
.skip-link { position:absolute; left:-999px; top:0; background: var(--y5-blue); color:#fff; padding: 12px 18px; z-index: 999; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

/* Rich-text article content (from the blog admin editor) */
.prose h2 { font-size: 1.6rem; margin: 2em 0 .6em; }
.prose h3 { font-size: 1.3rem; margin: 1.8em 0 .5em; }
.prose p { margin-bottom: 1.2em; color: var(--ink-on-dark-2); }
.prose ul, .prose ol { margin: 0 0 1.2em 1.4em; color: var(--ink-on-dark-2); }
.prose li { margin-bottom: .5em; }
.prose a { color: var(--y5-blue-bright); text-decoration: underline; text-underline-offset: 3px; }
.prose blockquote { border-left: 3px solid var(--y5-blue); padding-left: 20px; margin: 1.6em 0; color: var(--ink-on-dark-1); font-style: italic; }
.prose img { border-radius: var(--radius-md); margin: 1.6em 0; }
.prose code { background: var(--y5-surface); padding: 2px 6px; border-radius: 4px; font-size: .9em; }
.prose pre { background: var(--y5-surface); padding: 16px; border-radius: var(--radius-md); overflow-x: auto; margin: 1.6em 0; }