/* ==========================================================================
   BigBox Technologies — technology consulting & delivery partner
   Design system: ink/navy + logo-matched coral & gold accents
   ========================================================================== */

:root {
  --ink: #0a0f1f;
  --ink-soft: #16213e;
  --navy-2: #1b2747;
  --coral: #ff444c;
  --coral-dark: #e0323a;
  --gold: #d4af37;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-soft-2: #eef1f8;
  --border: #e1e5ee;
  --border-dark: rgba(255, 255, 255, 0.12);
  --text: #4a5268;
  --text-dim: #7b8299;
  --text-dark: #0a0f1f;
  --white: #ffffff;
  --shadow: 0 20px 50px rgba(10, 15, 31, 0.08);
  --shadow-sm: 0 8px 24px rgba(10, 15, 31, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --container: 1200px;
  --font-display: 'Plus Jakarta Sans', 'Inter', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --glow-coral: rgba(255, 68, 76, 0.16);
  --glow-gold: rgba(212, 175, 55, 0.3);
}

/* Native cross-document view transitions — zero JS, zero routing change,
   no SEO impact (progressive enhancement, ignored by non-supporting browsers). */
@view-transition {
  navigation: auto;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
/* overflow-x: clip (not hidden) — hidden turns body into a scroll container in
   Chrome, which silently breaks position:sticky for descendants like .site-header. */
html, body { overflow-x: clip; max-width: 100%; }

@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;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}

p { margin: 0 0 16px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
svg { display: block; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

section { padding: 120px 0; }
.section-soft { background: var(--bg-soft); }

.icon { width: 1em; height: 1em; fill: currentColor; display: inline-block; }

/* ---------- Typography helpers ---------- */
.h1 { font-size: clamp(38px, 5vw, 60px); }
.h2 { font-size: clamp(30px, 3.4vw, 42px); }
.h3 { font-size: clamp(20px, 2vw, 24px); }
.lead { font-size: 19px; color: var(--text); }
.small { font-size: 14px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--coral);
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12.5px;
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--coral);
  display: inline-block;
}

.section-header { max-width: 680px; margin-bottom: 64px; }
.section-header.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-header p:last-child { margin-bottom: 0; }

/* Visually hidden but available to screen readers — used to give otherwise
   generic link text ("Learn more") a distinct accessible name. */
.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;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-display);
  border: 1.5px solid transparent;
  transition: all 0.25s var(--ease);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 40%, rgba(255,255,255,0.28) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.6s var(--ease);
  pointer-events: none;
}
.btn:hover::before { transform: translateX(120%); }
.btn-primary {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--coral); border-color: var(--coral); transform: translateY(-2px); }
.btn-outline {
  border-color: var(--border);
  color: var(--text-dark);
  background: var(--white);
}
.btn-outline:hover { border-color: var(--ink); transform: translateY(-2px); }
.btn-on-dark { border-color: rgba(255,255,255,0.25); color: var(--white); background: transparent; }
.btn-on-dark:hover { background: var(--white); color: var(--ink); border-color: var(--white); }
.btn-gold { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.btn-gold:hover { background: var(--white); border-color: var(--white); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--text-dark);
  font-size: 15px;
  position: relative;
}
.link-arrow svg { transition: transform 0.25s var(--ease); width: 16px; height: 16px; }
.link-arrow:hover svg { transform: translateX(4px); }
.link-arrow:hover { color: var(--coral); }

/* ---------- Reveal on scroll ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

/* ---------- Preloader ---------- */
.loader-area {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.loader-area.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.bbt-loader {
  position: relative;
  width: 100px;
  height: 140px;
  margin: auto;
  background-image: url('/images/loader-bg.png');
  background-size: cover;
  background-repeat: no-repeat;
}
.bbt-loader img {
  width: 50px;
  position: absolute;
  left: 54%;
  top: 55px;
  transform: translateX(-50%);
  animation: bbt-spin 4s linear infinite;
}
@keyframes bbt-spin { 100% { transform: translateX(-50%) rotate(360deg); } }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  gap: 24px;
}
.brand-logo { height: 36px; width: auto; }
.main-nav > ul { display: flex; gap: 6px; align-items: center; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--text-dark);
  padding: 10px 14px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active { color: var(--coral); background: var(--bg-soft); }
.main-nav .caret { width: 9px; height: 9px; margin-top: -2px; }
.dropdown-toggle { display: none; }

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  white-space: nowrap;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: all 0.2s var(--ease);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a {
  display: block;
  padding: 11px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.dropdown li a:hover { background: var(--bg-soft); color: var(--coral); }

.nav-cta { flex-shrink: 0; padding: 11px 22px; font-size: 14px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text-dark); transition: all 0.25s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  padding: 18px 0;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--header-h, 81px);
  z-index: 90;
}
.breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; list-style: none; margin: 0; padding: 0; }
.breadcrumbs li { font-size: 13px; color: var(--text-dim); }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin: 0 8px; color: var(--border); }
.breadcrumbs a { color: var(--text-dim); transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--coral); }
.breadcrumbs li[aria-current] { color: var(--text-dark); font-weight: 600; }

/* ---------- Page hero (interior pages) ---------- */
.page-hero { padding: 64px 0 72px; background: var(--bg-soft); }
.page-hero .eyebrow { margin-bottom: 18px; }
.page-hero .lead { max-width: 640px; }

/* ---------- Home hero ---------- */
.hero { padding: 88px 0 100px; overflow: hidden; }
.hero-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.hero-content .lead { max-width: 480px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, var(--ink-soft) 0%, var(--ink) 72%);
  box-shadow: 0 0 90px 6px rgba(255, 68, 76, 0.14), 0 30px 70px rgba(10, 15, 31, 0.35);
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%, var(--glow-coral) 0%, transparent 30%),
    radial-gradient(circle at 50% 50%, var(--glow-gold) 20%, transparent 55%);
  filter: blur(20px);
  animation: hero-glow-breathe 7s ease-in-out infinite;
  pointer-events: none;
}
@keyframes hero-glow-breathe { 0%, 100% { opacity: 0.75; transform: scale(1); } 50% { opacity: 1; transform: scale(1.05); } }
.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: center;
  mask-image: radial-gradient(circle at 50% 50%, #000 0%, #000 45%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 0%, #000 45%, transparent 78%);
  pointer-events: none;
}
.hero-visual svg {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
  transform: translate(calc(var(--hero-mx, 0) * 1px), calc(var(--hero-my, 0) * 1px));
  transition: transform 0.35s var(--ease);
}
.hero-node { fill: var(--white); stroke: rgba(255, 255, 255, 0.3); stroke-width: 1.5; transition: stroke 0.25s var(--ease), filter 0.25s var(--ease); }
.hero-node:hover { stroke: var(--coral); filter: drop-shadow(0 0 8px var(--glow-coral)); cursor: default; }
.hero-node-core { fill: var(--coral); filter: drop-shadow(0 0 20px rgba(255, 68, 76, 0.75)); }
.hero-line { stroke: rgba(255, 255, 255, 0.16); stroke-width: 1.5; fill: none; }
.hero-line-active { stroke: var(--coral); stroke-width: 1.5; fill: none; stroke-dasharray: 6 6; animation: dash 20s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -240; } }
.hero-label { font-family: var(--font-display); font-size: 11px; font-weight: 700; fill: rgba(255, 255, 255, 0.6); letter-spacing: 0.04em; }
.hero-label[font-size] { fill: var(--ink); letter-spacing: 0.02em; }
.hero-core-label { font-family: var(--font-display); font-size: 13px; font-weight: 800; fill: #fff; }
.hero-dot { fill: var(--gold); }
.pulse { animation: pulse 3s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

/* Traveling particles along hero connections (HTML overlay, same proven
   technique as .diagram-connector / .arch-connector particle flow) */
.hero-particles { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.hero-particle {
  position: absolute;
  width: 6px; height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 8px var(--glow-coral);
  left: var(--from-x);
  top: var(--from-y);
  opacity: 0;
  animation: hero-particle-flow 3.6s linear infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes hero-particle-flow {
  0% { left: var(--from-x); top: var(--from-y); opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { left: var(--to-x); top: var(--to-y); opacity: 0; }
}

/* ---------- Statement band (single centered line) ---------- */
.statement-band { padding: 72px 0; text-align: center; }
.statement-band .eyebrow { justify-content: center; }
.statement-band h2 { font-size: clamp(24px, 2.8vw, 32px); max-width: 760px; margin: 0 auto; }

/* ---------- Value row ---------- */
.value-row { border-top: 1px solid var(--border); }
.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.value-item { padding: 48px 32px 48px 0; border-right: 1px solid var(--border); }
.value-item:not(:first-child) { padding-left: 32px; }
.value-item:last-child { border-right: none; }
.value-item .index { font-family: var(--font-display); font-size: 12.5px; font-weight: 700; color: var(--coral); letter-spacing: 0.06em; margin-bottom: 14px; display: block; }
.value-item h3 { font-size: 18px; margin-bottom: 10px; }
.value-item p { font-size: 14.5px; margin: 0; color: var(--text); }

/* ---------- Four pillars ---------- */
.pillars { background: var(--bg-soft); }
.pillars-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.pillar {
  background: var(--white);
  padding: 40px 30px;
  transition: background 0.25s var(--ease), transform 0.2s var(--ease);
  display: flex;
  flex-direction: column;
  min-height: 270px;
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  transform: perspective(900px) rotateX(var(--tilt-y)) rotateY(var(--tilt-x));
  will-change: transform;
}
.pillar:hover { background: var(--ink); transform: perspective(900px) rotateX(var(--tilt-y)) rotateY(var(--tilt-x)) translateY(-4px); }
.pillar:hover .pillar-tag,
.pillar:hover h3,
.pillar:hover p { color: var(--white); }
.pillar:hover .pillar-tag { color: var(--gold); }
.pillar:hover .link-arrow { color: var(--gold); }
.pillar-tag {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--coral);
  margin-bottom: 20px;
}
.pillar h3 { font-size: 19px; margin-bottom: 12px; transition: color 0.25s; }
.pillar p { font-size: 14.5px; color: var(--text); flex-grow: 1; transition: color 0.25s; margin-bottom: 20px; }
.pillar .link-arrow { transition: color 0.25s; }
.pillar:hover .link-arrow svg { stroke: var(--gold); }

/* ---------- Problems / What we solve ---------- */
.problems-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.problem { background: var(--white); padding: 40px; }
.problem h3 { font-size: 18px; margin-bottom: 10px; display: flex; align-items: flex-start; gap: 12px; }
.problem h3 .q { color: var(--coral); font-family: var(--font-display); }
.problem p { font-size: 14.5px; margin: 0; padding-left: 26px; }

/* ---------- Process timeline ---------- */
.process { background: var(--ink); color: rgba(255,255,255,0.72); }
.process .section-header h2, .process .eyebrow { color: var(--white); }
.process .eyebrow { color: var(--gold); }
.process .eyebrow::before { background: var(--gold); }
.process-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
.process-track::before {
  content: "";
  position: absolute;
  top: 22px; left: 0; right: 0;
  height: 1px;
  background: var(--border-dark);
}
.process-step { padding-right: 24px; position: relative; }
.process-step .num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--ink);
  border: 1.5px solid var(--border-dark);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}
.process-step h3 { color: var(--white); font-size: 17px; margin-bottom: 10px; }
.process-step p { font-size: 14px; margin: 0; color: rgba(255,255,255,0.6); }

/* ---------- Integration diagram ---------- */
.integration-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
  padding: 56px 40px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}
.diagram-node {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 140px;
  text-align: center;
}
.diagram-node .node-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--coral);
  font-size: 24px;
}
.diagram-node.center .node-icon { background: var(--ink); color: var(--gold); border-color: var(--ink); }
.diagram-node span { font-size: 13px; font-weight: 600; font-family: var(--font-display); color: var(--text-dark); }
.diagram-connector { flex: 1; height: 2px; position: relative; min-width: 30px; background: repeating-linear-gradient(90deg, var(--border) 0 6px, transparent 6px 12px); }
.diagram-connector::after {
  content: "";
  position: absolute;
  top: -3px; left: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--coral);
  animation: flow 3.5s linear infinite;
}
@keyframes flow { 0% { left: 0; opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { left: calc(100% - 8px); opacity: 0; } }

/* ---------- Philosophy ---------- */
.philosophy-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.philosophy-statement .h2 { font-size: clamp(28px, 3vw, 36px); }
.philosophy-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; }
.philosophy-list li {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-dark);
  padding: 14px 0 14px 22px;
  border-top: 1px solid var(--border);
  position: relative;
}
.philosophy-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 22px;
  width: 8px; height: 8px;
  background: var(--coral);
  border-radius: 2px;
}

/* ---------- Featured work / case studies ---------- */
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  background: var(--white);
  transition: box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.case-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.case-card .case-label {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 14px;
}
.case-card h3 { font-size: 19px; margin-bottom: 18px; }
.case-field { margin-bottom: 14px; }
.case-field dt { font-size: 12px; font-weight: 700; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 4px; }
.case-field dd { font-size: 14.5px; margin: 0; color: var(--text); }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.case-tags span { font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 20px; background: rgba(255, 68, 76, 0.08); color: var(--text-dark); }
.work-note {
  margin-top: 40px;
  padding: 22px 28px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-dim);
  background: var(--bg-soft);
}

/* ---------- About considerations grid ---------- */
.considerations { display: flex; flex-wrap: wrap; gap: 12px; }
.considerations span {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 20px;
  border: 1px solid rgba(255, 68, 76, 0.3);
  border-radius: 40px;
  color: var(--text-dark);
}
.about-block { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 60px; align-items: start; }
.about-block + .about-block { margin-top: 88px; padding-top: 88px; border-top: 1px solid var(--border); }
.about-block h2 { font-size: clamp(26px, 2.6vw, 32px); }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--ink); color: var(--white); text-align: center; }
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(255, 68, 76, 0.28) 0%, transparent 55%),
              radial-gradient(circle at 50% 0%, rgba(212, 175, 55, 0.24) 0%, transparent 35%);
  pointer-events: none;
}
.cta-band .container { position: relative; }
.cta-band h2 { color: var(--white); font-size: clamp(28px, 3.6vw, 44px); max-width: 720px; margin: 0 auto 20px; }
.cta-band p { color: rgba(255,255,255,0.65); max-width: 560px; margin: 0 auto 36px; font-size: 17px; }
.cta-band .btn-primary { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.cta-band .btn-primary:hover { background: var(--white); border-color: var(--white); }

/* ---------- Services overview ---------- */
.services-list { display: flex; flex-direction: column; }
.service-row {
  display: grid;
  grid-template-columns: 90px 1fr 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--border);
  transition: background 0.2s;
}
.services-list .service-row:last-child { border-bottom: 1px solid var(--border); }
.service-row:hover { background: var(--bg-soft); }
.service-row .tag { font-family: var(--font-display); font-weight: 800; font-size: 12px; color: var(--coral); letter-spacing: 0.08em; }
.service-row h3 { font-size: 21px; margin: 0; }
.service-row p { font-size: 14.5px; margin: 0; color: var(--text); }

/* ---------- Service detail page ---------- */
.service-detail-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.capability-list { display: flex; flex-direction: column; gap: 0; }
.capability-list li {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  padding: 16px 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.capability-list li:last-child { border-bottom: 1px solid var(--border); }
.capability-list li::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--coral);
  flex-shrink: 0;
}
.core-message {
  background: var(--bg-soft);
  border-left: 3px solid var(--coral);
  padding: 28px 32px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dark);
  margin: 32px 0;
}
.related-services { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px; }
.related-services a {
  display: block;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--text-dark);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.related-services a:hover { border-color: var(--ink); box-shadow: var(--shadow-sm); }

/* ---------- AI teaser (homepage) ---------- */
.ai-teaser { background: var(--ink); color: rgba(255,255,255,0.72); }
.ai-teaser-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.ai-teaser h2 { color: var(--white); font-size: clamp(28px, 3.4vw, 40px); }
.ai-teaser .eyebrow { color: var(--gold); }
.ai-teaser .eyebrow::before { background: var(--gold); }
.ai-teaser p.lead { color: rgba(255,255,255,0.68); }
.ai-teaser-visual { display: flex; flex-direction: column; gap: 10px; }
.ai-teaser-row {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
}
.ai-teaser-row .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); flex-shrink: 0; }
.ai-teaser-row.accent { background: rgba(212,175,55,0.12); border-color: rgba(212,175,55,0.4); color: var(--white); }

/* ---------- Principles (3-up bordered grid, reuses .problem look) ---------- */
.principles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.principles-grid .problem h3 { display: block; }

/* ---------- Opportunity rows (scenario -> capability) ---------- */
.opportunity-list { display: flex; flex-direction: column; }
.opportunity-row {
  display: grid;
  grid-template-columns: 1fr 32px auto;
  align-items: center;
  gap: 20px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
}
.opportunity-list .opportunity-row:last-child { border-bottom: 1px solid var(--border); }
.opportunity-row .scenario h4 { margin: 0 0 4px; font-size: 16px; color: var(--text-dark); }
.opportunity-row .scenario p { margin: 0; font-size: 14px; color: var(--text-dim); }
.opportunity-row .arrow { color: var(--coral); display: flex; }
.opportunity-row .capability {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--text-dark);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 30px;
  white-space: nowrap;
  justify-self: start;
}

/* ---------- AI capability clusters ---------- */
.ai-capability-list { display: flex; flex-direction: column; }
.ai-capability { padding: 40px 0; border-top: 1px solid var(--border); }
.ai-capability-list .ai-capability:last-child { border-bottom: 1px solid var(--border); }
.ai-capability-head { max-width: 640px; margin-bottom: 22px; }
.ai-capability-head h3 { font-size: 21px; margin-bottom: 8px; }
.ai-capability-head p { margin: 0; font-size: 15px; }
.ai-capability .pillar-tag { display: block; margin-bottom: 12px; }
.ai-capability .considerations span { background: var(--white); }

/* ---------- Workflow showcase (vertical timelines) ---------- */
.workflow-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.workflow-chain h3 { font-size: 18px; margin-bottom: 24px; }
.workflow-step { position: relative; padding-left: 52px; padding-bottom: 30px; }
.workflow-step:last-child { padding-bottom: 0; }
.workflow-step::before {
  content: "";
  position: absolute;
  left: 17px; top: 36px; bottom: -30px;
  width: 2px;
  background: var(--border);
}
.workflow-step:last-child::before { display: none; }
.workflow-step .step-icon {
  position: absolute; left: 0; top: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  color: var(--coral);
  z-index: 1;
}
.workflow-step .step-icon svg { width: 17px; height: 17px; }
.workflow-step.ai .step-icon { background: var(--ink); border-color: var(--ink); color: var(--gold); }
.workflow-step.human .step-icon { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.workflow-step p { margin: 0; font-size: 14.5px; font-weight: 600; color: var(--text-dark); padding-top: 6px; }

/* ---------- Architecture diagram (layered) ---------- */
.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 56px 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}
.arch-layer { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.arch-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13.5px;
  color: var(--text-dark);
  text-align: center;
  min-width: 130px;
  white-space: nowrap;
}
.arch-box.accent { background: var(--ink); color: var(--white); border-color: var(--ink); }
.arch-box.gold { background: rgba(212,175,55,0.16); border-color: var(--gold); color: var(--text-dark); }
.arch-connector { width: 2px; height: 38px; position: relative; background: repeating-linear-gradient(180deg, var(--border) 0 6px, transparent 6px 12px); }
.arch-connector::after {
  content: "";
  position: absolute;
  left: -3px; top: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--coral);
  animation: flow-y 3s linear infinite;
}
@keyframes flow-y { 0% { top: 0; opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { top: calc(100% - 8px); opacity: 0; } }

/* ---------- Tech category grid ---------- */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 24px; }
.tech-grid .security-card { background: var(--white); border: 1px solid var(--border); }
.tech-grid .security-card h3 { font-size: 15px; }
.tech-grid .security-card ul { margin: 0; padding: 0; list-style: none; }
.tech-grid .security-card li { font-size: 13.5px; color: var(--text); padding: 4px 0; }

/* ---------- Technical audit panel (illustrative only) ---------- */
.audit-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 44px 40px;
}
.audit-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
}
.audit-panel .audit-row:first-child { border-top: none; padding-top: 0; }
.audit-panel .audit-row:last-child { padding-bottom: 0; }
.audit-label { width: 160px; flex-shrink: 0; font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--text-dark); }
.audit-bar-track { flex: 1; height: 8px; background: var(--bg-soft-2); border-radius: 4px; overflow: hidden; }
.audit-bar-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--coral), var(--gold)); }
.audit-status { width: 118px; flex-shrink: 0; text-align: right; font-family: var(--font-display); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-dim); }
.audit-status.attention { color: var(--coral); }

/* ---------- Analytics dashboard (illustrative only) ---------- */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 20px; }
.dashboard-tile { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 24px; }
.dashboard-tile .metric-label { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-dim); margin-bottom: 16px; }
.dashboard-tile .metric-visual { height: 44px; display: flex; align-items: flex-end; gap: 4px; }
.dashboard-tile .metric-visual span { flex: 1; background: var(--bg-soft-2); border-radius: 2px 2px 0 0; }
.dashboard-tile .metric-visual span.hi { background: var(--gold); }
.dashboard-tile .metric-name { font-family: var(--font-display); font-weight: 600; font-size: 13.5px; color: var(--text-dark); margin-top: 14px; }
.dashboard-note { text-align: center; font-size: 13px; color: var(--text-dim); margin-top: 24px; }

/* ---------- Workflow 4-up grid (reuses .workflow-chain / .workflow-step) ---------- */
.workflow-grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px 48px; }

/* ---------- Services slider (homepage) ---------- */
.services-slider { position: relative; }
.slider-viewport { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius); background: var(--white); }
.slider-track { display: flex; transition: transform 0.55s var(--ease); }
.slide {
  flex: 0 0 100%;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: center;
  padding: 56px;
  min-height: 340px;
}
.slide-flow { display: flex; flex-direction: column; align-items: center; gap: 0; }
.flow-node { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.flow-icon {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--coral);
  font-size: 22px;
}
.flow-node.center .flow-icon { background: var(--ink); color: var(--gold); border-color: var(--ink); }
.flow-node span { font-family: var(--font-display); font-weight: 600; font-size: 12.5px; color: var(--text-dim); }
.flow-connector { width: 2px; height: 34px; position: relative; background: repeating-linear-gradient(180deg, var(--border) 0 5px, transparent 5px 10px); }
.flow-connector::after {
  content: "";
  position: absolute;
  left: -3px; top: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--coral);
  animation: flow-y 3s linear infinite;
}
.slide-content .pillar-tag { display: block; margin-bottom: 14px; }
.slide-content h3 { font-size: 24px; margin-bottom: 12px; }
.slide-content p { font-size: 15px; margin-bottom: 22px; }

.slider-controls { display: flex; align-items: center; justify-content: center; gap: 20px; margin-top: 28px; }
.slider-arrow {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-dark);
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
  flex-shrink: 0;
}
.slider-arrow:hover { border-color: var(--ink); transform: translateY(-2px); }
.slider-arrow svg { width: 18px; height: 18px; }
.slider-dots { display: flex; gap: 9px; }
.slider-dots .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  border: none;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
}
.slider-dots .dot.active { background: var(--coral); transform: scale(1.3); }
.slider-pause {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-dim);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.slider-pause:hover { color: var(--text-dark); border-color: var(--ink); }
.slider-pause svg { width: 14px; height: 14px; }

@media (max-width: 767px) {
  .slide { grid-template-columns: 1fr; padding: 32px 24px; gap: 24px; text-align: center; min-height: auto; }
  .slide-flow { flex-direction: row; }
  .flow-connector { width: 26px; height: 2px; background: repeating-linear-gradient(90deg, var(--border) 0 5px, transparent 5px 10px); }
  .flow-connector::after { left: 0; top: -3px; animation-name: flow; }
  .flow-icon { width: 46px; height: 46px; font-size: 18px; }
  .slider-controls { gap: 14px; margin-top: 20px; }
}

/* ---------- Approach page detail ---------- */
.approach-steps { display: flex; flex-direction: column; }
.approach-step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 40px;
  padding: 48px 0;
  border-top: 1px solid var(--border);
}
.approach-steps .approach-step:last-child { border-bottom: 1px solid var(--border); }
.approach-step .num { font-family: var(--font-display); font-size: 42px; font-weight: 800; color: var(--bg-soft-2); -webkit-text-stroke: 1.5px var(--border); }
.approach-step h3 { font-size: 22px; margin-bottom: 12px; }
.approach-step p { font-size: 15.5px; max-width: 560px; margin: 0; }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; align-items: start; }
.contact-info dl { margin: 32px 0; }
.contact-info dt { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 6px; }
.contact-info dd { margin: 0 0 24px; font-size: 16px; font-weight: 600; color: var(--text-dark); }
.contact-note { font-size: 14px; color: var(--text-dim); padding: 20px 22px; background: var(--bg-soft); border-radius: var(--radius-sm); }

.contact-form { background: var(--white); border: 1px solid var(--border); padding: 44px; border-radius: var(--radius); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; color: var(--text-dark); font-family: var(--font-display); }
.form-group .optional { color: var(--text-dim); font-weight: 400; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14.5px;
  color: var(--text-dark);
  background: var(--white);
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 68, 76, 0.18);
}
.form-note { font-size: 14px; font-weight: 600; margin: 16px 0 0; min-height: 1.4em; }
.form-note.success { color: #1a9c5c; }
.form-note.error { color: #d64545; }
.human-check label { display: flex; align-items: center; gap: 6px; }
.human-check label::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--coral);
  flex-shrink: 0;
}
.human-check input { max-width: 220px; letter-spacing: 0.08em; }
.captcha-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.captcha-row canvas {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-soft);
  cursor: default;
}
.captcha-refresh {
  width: 38px; height: 38px;
  flex-shrink: 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.captcha-refresh:hover { color: var(--coral); border-color: var(--coral); transform: rotate(80deg); }
.captcha-refresh svg { width: 16px; height: 16px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(255,255,255,0.6); position: relative; overflow: hidden; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding: 88px 28px 56px; }
.footer-logo { height: 32px; margin-bottom: 20px; filter: brightness(0) invert(1); }
.footer-brand p { font-size: 14.5px; max-width: 280px; }
.site-footer h4 { color: var(--white); font-size: 14px; margin-bottom: 22px; font-family: var(--font-display); letter-spacing: 0.02em; }
.footer-col ul { display: flex; flex-direction: column; gap: 13px; }
.footer-col a { font-size: 14.5px; transition: color 0.2s; }
.footer-col a:hover { color: var(--white); }
.footer-contact li { font-size: 14.5px; }
.footer-contact a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid var(--border-dark); }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; padding: 24px 28px; flex-wrap: wrap; gap: 14px; font-size: 13.5px; }
.footer-bottom-inner .footer-cta { color: var(--gold); font-weight: 600; font-family: var(--font-display); }
.footer-bottom-inner .footer-cta:hover { color: var(--white); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 26px; bottom: 26px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  border: none;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 90;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--coral); }

/* ---------- Side contact widget (homepage only) ---------- */
.side-contact {
  position: fixed;
  left: 0;
  top: calc(var(--header-h, 81px) + 16px);
  width: 340px;
  max-width: calc(100vw - 20px);
  max-height: calc(100vh - var(--header-h, 81px) - 32px);
  z-index: 95;
  transform: translateX(-115%);
  transition: transform 0.5s var(--ease);
  pointer-events: none;
}
.side-contact.open { transform: translateX(0); pointer-events: auto; }
.side-contact-inner {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-left: none;
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow);
  padding: 34px 30px;
  max-height: calc(100vh - var(--header-h, 81px) - 32px);
  overflow-y: auto;
}
.side-contact-close {
  position: absolute;
  top: 14px; right: 14px;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: none;
  background: var(--bg-soft);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}
.side-contact-close:hover { background: var(--ink); color: var(--white); }
.side-contact-close svg { width: 14px; height: 14px; }
.side-contact-eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 10px;
  padding-right: 30px;
}
.side-contact-inner h3 { font-size: 20px; margin-bottom: 8px; padding-right: 20px; }
.side-contact-lead { font-size: 14px; color: var(--text); margin-bottom: 22px; }
.side-contact-form .form-group { margin-bottom: 14px; }
.side-contact-form label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-dark);
  font-family: var(--font-display);
}
.side-contact-form input,
.side-contact-form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-dark);
  background: var(--white);
  resize: vertical;
  transition: border-color 0.2s;
}
.side-contact-form input:focus,
.side-contact-form textarea:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 68, 76, 0.15);
}
.side-contact-submit { width: 100%; justify-content: center; margin-top: 4px; }

.side-contact-tab {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 95;
  background: var(--ink);
  color: var(--white);
  border: none;
  border-radius: 0 10px 10px 0;
  padding: 20px 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease), background 0.2s, transform 0.2s;
  animation: side-tab-idle-glow 3.2s ease-in-out infinite;
}
.side-contact-tab.show { opacity: 1; visibility: visible; }
.side-contact-tab:hover { background: var(--coral); transform: translateY(-50%) translateX(2px); }
.side-contact-tab-text {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
@keyframes side-tab-idle-glow {
  0%, 100% { box-shadow: var(--shadow-sm); }
  50% { box-shadow: 0 0 18px 3px var(--glow-coral), var(--shadow-sm); }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 991px) {
  section { padding: 88px 0; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; margin: 0 auto; order: -1; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .value-item { border-right: none; border-bottom: 1px solid var(--border); padding: 32px 0; }
  .pillars-grid { grid-template-columns: 1fr 1fr; }
  .problems-grid { grid-template-columns: 1fr; }
  .principles-grid { grid-template-columns: 1fr; }
  .ai-teaser-inner { grid-template-columns: 1fr; }
  .ai-teaser-visual { order: -1; }
  .opportunity-row { grid-template-columns: 1fr; gap: 10px; text-align: left; }
  .opportunity-row .capability { justify-self: start; }
  .workflow-columns { grid-template-columns: 1fr; gap: 40px; }
  .arch-box { min-width: 110px; font-size: 12.5px; padding: 12px 16px; }
  .process-track { grid-template-columns: 1fr; gap: 40px; }
  .process-track::before { display: none; }
  .philosophy-inner { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .about-block { grid-template-columns: 1fr; gap: 24px; }
  .service-detail-inner { grid-template-columns: 1fr; }
  .related-services { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-cta { display: none; }
}

@media (max-width: 767px) {
  section { padding: 64px 0; }
  .page-hero { padding: 48px 0 56px; }
  .breadcrumbs { padding: 14px 0; }
  .hero { padding: 56px 0 64px; }
  .main-nav {
    position: fixed;
    top: 0; right: 0;
    width: 300px; max-width: 85vw; height: 100vh;
    background: var(--white);
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    padding: 100px 28px 30px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .main-nav > ul > li > a { padding: 14px 4px; }
  .dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 0 0 0 14px; display: none; }
  .has-dropdown.open .dropdown { display: block; }
  .has-dropdown { display: flex; flex-direction: column; }
  .has-dropdown > a { padding-right: 40px; }
  .dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    right: 0; top: 2px;
    width: 40px; height: 40px;
    background: none;
    border: none;
    color: var(--text-dark);
  }
  .dropdown-toggle svg { transition: transform 0.2s; }
  .has-dropdown.open .dropdown-toggle svg { transform: rotate(180deg); }
  .nav-toggle { display: flex; }
  .value-grid { grid-template-columns: 1fr; }
  .pillars-grid { grid-template-columns: 1fr; }
  .process-step { padding-right: 0; }
  .arch-diagram { padding: 32px 16px; }
  .arch-layer { gap: 10px; }
  .philosophy-list { grid-template-columns: 1fr; }
  .integration-diagram { padding: 32px 20px; }
  .diagram-node { width: 100px; }
  .diagram-node span { font-size: 11.5px; }
  .approach-step { grid-template-columns: 1fr; gap: 16px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; padding: 64px 28px 30px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .contact-form { padding: 28px; }
  .service-row { grid-template-columns: 1fr; gap: 10px; text-align: left; }
  .side-contact { width: 300px; }
  .side-contact-inner { padding: 28px 22px; }
  .side-contact-tab { padding: 16px 9px; }
  .side-contact-tab-text { font-size: 12px; }
}