/* =====================================================================
   CONSOLIDATED ROBUST INC. — STYLESHEET
   =====================================================================
   Edit colors, fonts, and spacing in the :root section below.
   All section styles are grouped and labeled clearly.
   ===================================================================== */

/* ---------- 1. CSS VARIABLES (edit theme here) ---------- */
:root {
  /* Primary — CRI logo navy */
  --brand-blue:        #09122f;   /* logo dark navy — headings, dark bg */
  --brand-blue-dark:   #05091a;
  --brand-blue-light:  #1a3a8a;  /* rich mid-blue — accent, buttons */
  --brand-accent:      #1a3a8a;
  --brand-blue-50:     #eef1f9;
  --brand-blue-100:    #cdd5ed;

  /* Neutrals */
  --white:        #FFFFFF;
  --ink:          #09122f;
  --ink-soft:     #3a4260;
  --ink-mute:     #6b7080;
  --line:         #e0e2ea;
  --bg-tinted:    #f2f3f7;
  --bg-dark:      #09122f;

  /* Effects */
  --shadow-sm:   0 2px 8px rgba(9, 18, 47, 0.07);
  --shadow-md:   0 12px 30px rgba(9, 18, 47, 0.11);
  --shadow-lg:   0 24px 60px rgba(9, 18, 47, 0.16);
  --shadow-blue: 0 18px 40px rgba(26, 58, 138, 0.32);

  /* Radius */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Type */
  --font-display: 'Poppins', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Layout */
  --container: 1200px;
  --nav-h: 76px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior-y: none;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* Container helper */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 3. NAVBAR ---------- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  z-index: 100;
  transition: background .45s cubic-bezier(.4,0,.2,1), box-shadow .45s cubic-bezier(.4,0,.2,1), border-color .45s cubic-bezier(.4,0,.2,1);
}
.navbar.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.nav-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
}
.nav-brand-text { display: none; }
.nav-brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.nav-brand-tag {
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links { display: flex; gap: 6px; align-items: center; }
.nav-link {
  padding: 10px 14px;
  border-radius: var(--r-sm);
  font-weight: 500;
  font-size: 14.5px;
  color: var(--ink-soft);
  transition: color .28s cubic-bezier(.4,0,.2,1), background .28s cubic-bezier(.4,0,.2,1);
  position: relative;
}
.nav-link:hover { color: var(--brand-blue); background: var(--brand-blue-50); }
.nav-link.active { color: var(--brand-blue); }

.nav-cta {
  background: var(--brand-accent);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: var(--shadow-blue);
  transition: transform .38s cubic-bezier(.34,1.56,.64,1), box-shadow .35s cubic-bezier(.4,0,.2,1), background .28s cubic-bezier(.4,0,.2,1);
}
.nav-cta:hover {
  background: var(--brand-blue-dark);
  transform: translateY(-1px);
  box-shadow: 0 22px 46px rgba(9, 18, 47, 0.38);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 4. BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: transform .42s cubic-bezier(.34,1.56,.64,1), box-shadow .4s cubic-bezier(.4,0,.2,1), background .28s cubic-bezier(.4,0,.2,1), color .25s cubic-bezier(.4,0,.2,1), border-color .28s cubic-bezier(.4,0,.2,1);
  cursor: pointer;
}
.btn-primary {
  background: var(--brand-accent);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover {
  background: var(--brand-blue);
  transform: translateY(-2px);
  box-shadow: 0 22px 46px rgba(9, 18, 47, 0.38);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
  background: var(--brand-blue-50);
}
.btn-block { width: 100%; justify-content: center; }

/* ---------- 5. HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  padding: calc(var(--nav-h) + 80px) 0 100px;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(9, 18, 47, 0.08), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(9, 18, 47, 0.06), transparent 60%),
    linear-gradient(rgba(255,255,255,0.72), rgba(255,255,255,0.72)),
    url('building.avif') center / cover no-repeat;
}

/* Decorative grid background */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(30, 90, 217, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 90, 217, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}

/* Glowing blobs */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  pointer-events: none;
  animation: floaty 12s ease-in-out infinite;
}
.hero-glow-1 {
  width: 420px; height: 420px;
  top: 10%; right: 5%;
  background: radial-gradient(circle, rgba(26, 58, 138, 0.20), transparent 70%);
}
.hero-glow-2 {
  width: 360px; height: 360px;
  bottom: -10%; left: -5%;
  background: radial-gradient(circle, rgba(9, 18, 47, 0.12), transparent 70%);
  animation-delay: -6s;
}
@keyframes floaty {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(20px, -30px); }
}

.hero-container {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content { z-index: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--brand-blue-50);
  color: var(--brand-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  border: 1px solid var(--brand-blue-100);
}
.eyebrow-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--brand-blue);
  background: var(--brand-accent);
  box-shadow: 0 0 0 4px rgba(26, 58, 138, 0.22);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(26, 58, 138, 0.22); }
  50%      { box-shadow: 0 0 0 8px rgba(26, 58, 138, 0); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 5.4vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 24px;
}
.text-gradient {
  background: linear-gradient(90deg, var(--brand-accent) 0%, var(--brand-blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 0;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-tagline::before,
.hero-tagline::after {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1.5px;
  background: var(--brand-accent);
  opacity: 0.5;
}

.hero-sub {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 520px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.hero-stat .stat-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 32px;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.hero-stat .stat-label {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-mute);
  font-weight: 500;
}

/* Hero visual (Spline iframe) */
.hero-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 560px;
  max-width: 980px;
  margin-left: auto;
  animation: heroVisualIn 1s 0.4s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes heroVisualIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.visual-glow {
  position: absolute;
  inset: 8%;
  background: radial-gradient(circle, rgba(46, 124, 255, 0.12) 0%, transparent 60%);
  filter: blur(60px);
  z-index: 0;
  animation: floaty 8s ease-in-out infinite;
}
.visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1.5px dashed rgba(30, 90, 217, 0.25);
  animation: spin 40s linear infinite;
}
.visual-ring-1 { inset: 0; }
.visual-ring-2 {
  inset: 12%;
  border-color: rgba(46, 124, 255, 0.18);
  border-style: solid;
  border-width: 1px;
  animation-duration: 60s;
  animation-direction: reverse;
}
@keyframes spin { to { transform: rotate(360deg); } }

.spline-frame {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
/* iframe replaces spline-viewer — isolated document context bypasses CSP */
.spline-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 560px;
  max-width: 100%;
  max-height: 100%;
  border: none;
  background: transparent;
  pointer-events: none;
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid rgba(30, 90, 217, 0.4);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
  z-index: 2;
}
.scroll-hint span {
  display: block;
  width: 3px;
  height: 8px;
  background: var(--brand-blue);
  border-radius: 2px;
  animation: scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot {
  0%   { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(14px); opacity: 0; }
}

/* ---------- 6. SECTION SHELL ---------- */
.section {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
}
.section-light   { background: var(--white); }
.section-tinted  { background: var(--bg-tinted); }
.section-dark    { background: var(--bg-dark); color: var(--white); }

/* Wave separators */
.wave-top, .wave-bottom {
  position: absolute;
  left: 0; right: 0;
  height: 80px;
  pointer-events: none;
}
.wave-top {
  top: -1px;
  background: linear-gradient(to bottom, var(--white), transparent);
}
.wave-bottom {
  bottom: -1px;
  background: linear-gradient(to top, var(--white), transparent);
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 64px;
}
.section-tag {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--brand-blue-50);
  color: var(--brand-blue-dark);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-tag-light {
  background: rgba(255, 255, 255, 0.08);
  color: var(--brand-blue-light);
  border: 1px solid rgba(91, 134, 229, 0.3);
}
.section-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}
.section-title-light { color: var(--white); }

.section-sub {
  margin-top: 18px;
  color: var(--ink-soft);
  font-size: 17px;
}
.section-sub-light { color: rgba(255, 255, 255, 0.72); }

.sub-head {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  margin: 36px 0 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sub-head::before {
  content: '';
  display: inline-block;
  width: 28px; height: 3px;
  background: var(--brand-blue);
  border-radius: 2px;
}

/* ---------- 7. ABOUT ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 60px;
  align-items: start;
}
.about-text p {
  color: var(--ink-soft);
  font-size: 16.5px;
  margin-bottom: 18px;
  text-align: justify;
  line-height: 1.85;
}
.about-text strong { color: var(--ink); font-weight: 600; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--brand-blue-50);
  color: var(--brand-blue-dark);
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid var(--brand-blue-100);
}
.chip i { color: var(--brand-blue); }

.about-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(46, 124, 255, 0.10), transparent 60%);
  pointer-events: none;
}
.about-card-row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.about-card-row:last-child { border-bottom: none; padding-bottom: 0; }
.about-card-row:first-child { padding-top: 0; }
.about-card-row i {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--brand-blue-50);
  color: var(--brand-blue);
  display: grid;
  place-items: center;
  font-size: 18px;
}
.about-card-row h4 {
  font-family: var(--font-display);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}
.about-card-row p {
  font-size: 14px;
  color: var(--ink-mute);
}

/* ---------- 8. SERVICES ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
a.service-card, a.partner-card {
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.service-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: var(--r-md);
  padding: 28px;
  transition: transform .48s cubic-bezier(.34,1.56,.64,1), box-shadow .45s cubic-bezier(.4,0,.2,1), border-color .35s cubic-bezier(.4,0,.2,1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, transparent, transparent);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  transition: background .4s cubic-bezier(.4,0,.2,1);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before {
  background: linear-gradient(135deg, var(--brand-blue), var(--brand-accent));
}
.service-icon {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  background: var(--brand-blue);
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 32px;
  margin-bottom: 24px;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(26, 58, 138, 0.22);
  transition: transform .48s cubic-bezier(.34,1.56,.64,1);
}
.service-card:hover .service-icon { transform: scale(1.06) rotate(-3deg); }

.service-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.65;
  flex-grow: 1;
  margin-bottom: 0;
}
.service-meta {
  display: block;
  font-size: 11px;
  color: var(--ink-mute);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 14px;
  margin-top: 16px;
  border-top: 1px solid var(--line);
}

/* ---------- 9. PARTNERS ---------- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 16px;
}
.partner-card {
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.88);
  border-radius: var(--r-md);
  padding: 24px;
  transition: transform .45s cubic-bezier(.34,1.56,.64,1), box-shadow .42s cubic-bezier(.4,0,.2,1), border-color .3s cubic-bezier(.4,0,.2,1);
  position: relative;
  display: flex;
  flex-direction: column;
}
.partner-logo {
  height: 84px;
  background: rgba(240, 245, 255, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}
/* Brand name text fallback (shown when image fails or hasn't loaded) */
.partner-logo::after {
  content: attr(data-name);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  color: var(--brand-accent);
  letter-spacing: 0.06em;
  pointer-events: none;
  white-space: nowrap;
}
.partner-logo[data-loaded]::after { display: none; }
.partner-logo img {
  max-height: 52px;
  max-width: 160px;
  object-fit: contain;
  display: block;
  position: relative;
  z-index: 1;
}
.partner-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-blue-100);
  box-shadow: var(--shadow-md);
}
.partner-flag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-blue);
  font-weight: 700;
  margin-bottom: 14px;
}
.partner-flag i { font-size: 7px; }
.partner-card h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 6px;
}
.partner-card p {
  font-size: 13.5px;
  color: var(--ink-mute);
}

/* ---------- 10. PROJECTS ---------- */
.proj-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
  padding: 8px;
  background: var(--white);
  border-radius: 999px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.proj-tab {
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: all .2s;
  white-space: nowrap;
}
.proj-tab:hover { color: var(--brand-blue); }
.proj-tab.is-active {
  background: var(--brand-blue);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.proj-panel { display: none; }
.proj-panel.is-active { display: block; animation: fadeIn .35s ease-out; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.proj-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 16px 20px;
  font-size: 14.5px;
  color: var(--ink);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform .38s cubic-bezier(.34,1.56,.64,1), border-color .28s cubic-bezier(.4,0,.2,1), box-shadow .3s cubic-bezier(.4,0,.2,1);
}
.proj-item:hover {
  border-color: var(--brand-blue);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}
.proj-item i {
  color: var(--brand-blue);
  font-size: 14px;
  flex-shrink: 0;
}

/* ---------- 11. WHY US ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.why-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 36px 28px;
  transition: transform .3s, box-shadow .3s;
  overflow: hidden;
}
.why-card::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 120px; height: 120px;
  background: radial-gradient(circle, rgba(26, 58, 138, 0.10), transparent 70%);
  pointer-events: none;
}
.why-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.why-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: var(--brand-blue-50);
  color: var(--brand-blue);
  display: grid;
  place-items: center;
  font-size: 26px;
  margin-bottom: 22px;
  transition: all .3s;
}
.why-card:hover .why-icon {
  background: var(--brand-blue);
  color: var(--white);
  transform: rotate(-6deg);
}
.why-card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 10px;
}
.why-card p {
  font-size: 14.5px;
  color: var(--ink-soft);
}

/* ---------- 12. CONTACT ---------- */
.section-dark {
  background:
    radial-gradient(800px 400px at 10% 0%, rgba(30, 90, 217, 0.25), transparent 60%),
    radial-gradient(700px 400px at 90% 100%, rgba(46, 124, 255, 0.2), transparent 60%),
    var(--bg-dark);
}
.contact-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.contact-glow-1 {
  width: 360px; height: 360px;
  top: 20%; left: 5%;
  background: radial-gradient(circle, rgba(30, 90, 217, 0.4), transparent 70%);
}
.contact-glow-2 {
  width: 320px; height: 320px;
  bottom: 10%; right: 5%;
  background: radial-gradient(circle, rgba(46, 124, 255, 0.35), transparent 70%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 50px;
  position: relative;
  z-index: 2;
}
.contact-brand-logo {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  mix-blend-mode: screen;
  display: block;
  margin-bottom: 24px;
}
.contact-info {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--r-lg);
  padding: 36px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.contact-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.contact-row:first-child { padding-top: 0; }
.contact-row:last-child  { padding-bottom: 0; border-bottom: none; }
.contact-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-blue), var(--brand-accent));
  color: var(--white);
  display: grid;
  place-items: center;
  font-size: 16px;
  box-shadow: var(--shadow-blue);
}
.contact-row h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--white);
  margin-bottom: 4px;
}
.contact-row p, .contact-row a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.6;
  word-break: break-word;
}
.contact-row a:hover { color: var(--brand-blue-light); }

/* Form */
.contact-form {
  background: var(--white);
  border-radius: var(--r-lg);
  padding: 36px;
  color: var(--ink);
  box-shadow: var(--shadow-lg);
}
.contact-form h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-note {
  color: var(--ink-mute);
  font-size: 14px;
  margin-bottom: 22px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-form label {
  display: block;
  margin-bottom: 14px;
}
.contact-form label span {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  font-family: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: var(--white);
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
  box-shadow: 0 0 0 4px rgba(30, 90, 217, 0.12);
}
.form-status {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 500;
  min-height: 20px;
}
.form-status.is-success { color: #1f8d4e; }
.form-status.is-error   { color: #c83434; }

/* ---------- 13. FOOTER ---------- */
.footer {
  background: #07101F;
  color: rgba(255, 255, 255, 0.72);
  padding: 70px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 50px;
}
.footer-brand img {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
  mix-blend-mode: screen;
}
.footer-brand h4 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-brand p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}
.footer-col h5 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-col a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color .28s cubic-bezier(.4,0,.2,1), transform .38s cubic-bezier(.34,1.56,.64,1);
}
.footer-col a:hover { color: var(--brand-blue-light); transform: translateX(4px); }
.footer-col a i { width: 16px; color: var(--brand-blue); }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-legal { font-size: 12px; }

/* ---------- 14. BACK TO TOP ---------- */
.to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-blue);
  color: var(--white);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-blue);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity .4s cubic-bezier(.4,0,.2,1), transform .45s cubic-bezier(.34,1.56,.64,1), background .28s cubic-bezier(.4,0,.2,1);
}
.to-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.to-top:hover { background: var(--brand-blue-dark); }

/* ---------- 15. REVEAL ANIMATIONS (Intersection Observer) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .75s cubic-bezier(0.16,1,0.3,1), transform .75s cubic-bezier(0.16,1,0.3,1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
/* Staggered reveals for grids */
.services-grid .reveal:nth-child(1) { transition-delay: 0ms; }
.services-grid .reveal:nth-child(2) { transition-delay: 60ms; }
.services-grid .reveal:nth-child(3) { transition-delay: 120ms; }
.services-grid .reveal:nth-child(4) { transition-delay: 180ms; }
.services-grid .reveal:nth-child(5) { transition-delay: 240ms; }
.services-grid .reveal:nth-child(6) { transition-delay: 300ms; }
.services-grid .reveal:nth-child(7) { transition-delay: 360ms; }
.services-grid .reveal:nth-child(8) { transition-delay: 420ms; }

.why-grid .reveal:nth-child(1) { transition-delay: 0ms; }
.why-grid .reveal:nth-child(2) { transition-delay: 80ms; }
.why-grid .reveal:nth-child(3) { transition-delay: 160ms; }
.why-grid .reveal:nth-child(4) { transition-delay: 240ms; }
.why-grid .reveal:nth-child(5) { transition-delay: 320ms; }
.why-grid .reveal:nth-child(6) { transition-delay: 400ms; }

.partners-grid .reveal:nth-child(1)  { transition-delay: 0ms; }
.partners-grid .reveal:nth-child(2)  { transition-delay: 60ms; }
.partners-grid .reveal:nth-child(3)  { transition-delay: 120ms; }
.partners-grid .reveal:nth-child(4)  { transition-delay: 180ms; }
.partners-grid .reveal:nth-child(5)  { transition-delay: 240ms; }
.partners-grid .reveal:nth-child(6)  { transition-delay: 300ms; }
.partners-grid .reveal:nth-child(7)  { transition-delay: 360ms; }
.partners-grid .reveal:nth-child(8)  { transition-delay: 420ms; }
.partners-grid .reveal:nth-child(9)  { transition-delay: 480ms; }
.partners-grid .reveal:nth-child(10) { transition-delay: 540ms; }

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* =====================================================================
   SPLASH SCREEN
   ===================================================================== */
#splash {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  transition: opacity 0.65s cubic-bezier(.4,0,.2,1), visibility 0.65s;
}
#splash.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
#splash-logo {
  width: 200px;
  height: auto;
  opacity: 0;
  transform: translateY(14px);
  animation: splashIn 0.55s 0.1s cubic-bezier(.4,0,.2,1) forwards;
}
#splash-tagline {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 500;
  color: #8a93a8;
  letter-spacing: 0.05em;
  margin-top: 20px;
  opacity: 0;
  transform: translateY(8px);
  animation: splashIn 0.55s 0.42s cubic-bezier(.4,0,.2,1) forwards;
}
#splash-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(9, 18, 47, 0.07);
  overflow: hidden;
}
#splash-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--brand-blue), var(--brand-accent));
  width: 0;
  animation: splashProgress 3s cubic-bezier(.4,0,.6,1) forwards;
}
@keyframes splashIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes splashProgress {
  0%   { width: 0%; }
  50%  { width: 65%; }
  85%  { width: 88%; }
  100% { width: 93%; }
}

/* AMPERES: remove white background via multiply blend mode */
.logo-multiply {
  mix-blend-mode: multiply;
  max-height: 64px !important;
  max-width: 180px !important;
}

/* =====================================================================
   16. RESPONSIVE BREAKPOINTS
   ===================================================================== */

/* Tablet */
@media (max-width: 1024px) {
  .hero-container { grid-template-columns: 1fr; gap: 50px; }
  .hero-visual { margin: 0 auto; max-width: 460px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 90px 0; }
}

/* Mobile */
@media (max-width: 720px) {
  .nav-brand-tag { display: none; }
  .nav-brand-name { font-size: 14px; }

  /* Mobile menu slide-down */
  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform .38s cubic-bezier(.4,0,.2,1), opacity .35s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link { width: 100%; padding: 14px 18px; }
  .nav-cta { text-align: center; }
  .nav-toggle { display: flex; }

  .hero { padding-top: calc(var(--nav-h) + 40px); }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .hero-stat .stat-num { font-size: 24px; }
  .hero-stat .stat-label { font-size: 10.5px; letter-spacing: 0.04em; }
  .hero-cta-row .btn { padding: 13px 20px; font-size: 14.5px; }

  .services-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .partners-grid { grid-template-columns: 1fr; gap: 14px; }
  .why-grid      { grid-template-columns: 1fr; }
  .proj-grid     { grid-template-columns: 1fr; }
  .form-row      { grid-template-columns: 1fr; }
  .footer-grid   { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  /* Compact partner cards for 2-column mobile layout */
  .partner-card { padding: 16px; }
  .partner-logo { height: 70px; padding: 10px 14px; margin-bottom: 12px; }
  .partner-card p { display: block; }
  .partner-flag { margin-bottom: 6px; }

  /* Compact service cards */
  .service-card { padding: 22px; }
  .service-icon { width: 72px; height: 72px; border-radius: 18px; font-size: 26px; margin-bottom: 18px; }

  .section { padding: 70px 0; }
  .section-head { margin-bottom: 40px; }
  .contact-info, .contact-form, .about-card { padding: 24px; }

  .proj-tabs {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    border-radius: var(--r-md);
    padding: 6px;
    -webkit-overflow-scrolling: touch;
  }

  /* Prevent iOS auto-zoom on form inputs */
  input, select, textarea { font-size: 16px !important; }

  /* Disable backdrop-filter on mobile — causes GPU overdraw and scroll jank */
  .service-card, .partner-card {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
  .partner-logo {
    background: #eef1f9;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  /* Hide heavy Spline WebGL on mobile for smoother performance */
  .spline-frame { display: none; }
  .hero-visual { display: none; }
}

/* Small phones (≤ 480px) */
@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hero-stat .stat-num { font-size: 22px; }

  .services-grid { grid-template-columns: 1fr; gap: 12px; }
  .partners-grid { grid-template-columns: 1fr; gap: 10px; }
  .partner-logo { height: 62px; }

  #splash-logo { width: 150px; }
  #splash-tagline { font-size: 13px; letter-spacing: 0.03em; }

  .section { padding: 56px 0; }
  .section-head { margin-bottom: 32px; }
}

/* Touch devices: disable hover lifts that feel stuck on tap */
@media (hover: none) {
  .service-card:hover,
  .partner-card:hover,
  .proj-item:hover { transform: none; }
  .btn:hover,
  .nav-cta:hover { transform: none; }
}

/* Global: faster tap response on all clickable elements */
a, button, [role="button"] { touch-action: manipulation; }