/* ============================================================
   AKSHAY HARLALKA — Design System
   Black & White / Engineering Precision
   ============================================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Abel&family=Inter:ital,opsz,wght@0,14..32,300..700;1,14..32,300..700&family=JetBrains+Mono:wght@400;700&display=swap');

/* === DESIGN TOKENS ========================================== */
:root {
  /* Colors — Dark Theme */
  --black:          #ffffff;
  --near-black:     #f0f0f0;
  --text:           rgba(255,255,255,0.85);
  --text-secondary: rgba(255,255,255,0.55);
  --text-tertiary:  rgba(255,255,255,0.35);
  --white:          #0A0A0A;
  --off-white:      #0A0A0A;
  --border:         rgba(255,255,255,0.1);
  --border-dark:    rgba(255,255,255,0.08);
  --surface:        #141414;

  /* Typography */
  --font-display: 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  /* Layout */
  --container-max:     1200px;
  --container-padding: 48px;
  --section-py:        72px;

  /* Transitions */
  --t-fast:   0.15s ease;
  --t:        0.25s ease;
  --t-slow:   0.4s ease;
}

/* === RESET ================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
section {
  scroll-margin-top: 80px;
}
.hero-video-banner {
  scroll-margin-top: 0;
}
body {
  font-family: var(--font-body);
  font-size: 1.0625rem; /* 17px */
  line-height: 1.68;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-optical-sizing: auto;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: var(--font-body); cursor: pointer; }
input, textarea, select {
  font-family: var(--font-body);
  font-size: inherit;
}

/* === TYPOGRAPHY ============================================= */
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--black);
  text-rendering: optimizeLegibility;
}
h2, h3 { text-wrap: balance; }
h1      { text-wrap: pretty; }
h4, h5 {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--black);
  line-height: 1.25;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.5rem, 8vw, 5.5rem);  font-weight: 400; line-height: 1.0;  letter-spacing: -0.01em; }
h2 { font-size: clamp(2rem, 4.5vw, 3.75rem); font-weight: 400; line-height: 1.05; letter-spacing: -0.005em; }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.75rem); font-weight: 400; line-height: 1.15; letter-spacing: 0; }
h4 { font-size: 1.0625rem; }
p  { color: var(--text); max-width: 68ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--black);
}

/* === LAYOUT ================================================= */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.section          { padding: var(--section-py) 0; background: var(--white); border-top: 1px solid rgba(255,255,255,0.1); }
.section--dark    { background: var(--white); color: var(--black); }
.section--gray    { background: var(--white); }
.section--alt     { background: var(--white); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.section-header { margin-bottom: 48px; text-align: center; }
.section-header p { margin-left: auto; margin-right: auto; }
.section-header--center { text-align: center; }
.section-header--center p { margin: 0 auto; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;
}
.section-label::before {
  display: none;
}

.section-rule {
  width: 40px;
  height: 2px;
  background: var(--black);
  margin-top: 28px;
  margin-left: auto;
  margin-right: auto;
}
.section-rule--center { margin-left: auto; margin-right: auto; }
.section-rule--white  { background: rgba(255,255,255,0.25); }

/* === BUTTONS ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 13px 28px;
  border: 1.5px solid currentColor;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--t);
  text-align: center;
  line-height: 1;
  white-space: nowrap;
}
.btn-black {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.btn-black:hover {
  background: transparent;
  color: var(--black);
}
.btn-white {
  background: #ffffff;
  color: #0A0A0A;
  border-color: #ffffff;
}
.btn-white:hover {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-white {
  background: transparent;
  color: var(--black);
  border-color: var(--border);
}
.btn-outline-white:hover {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.btn-outline-black {
  background: transparent;
  color: var(--black);
  border-color: var(--black);
}
.btn-outline-black:hover {
  background: var(--black);
  color: var(--white);
}
.btn-lg  { padding: 16px 36px; font-size: 0.95rem; }
.btn-sm  { padding: 9px 20px;  font-size: 0.8rem;  }
.btn-full { width: 100%; justify-content: center; }
.btn:hover { transform: translateY(-2px); }

/* arrow suffix */
.btn .arrow {
  display: inline-block;
  transition: transform var(--t-fast);
  font-style: normal;
}
.btn:hover .arrow { transform: translateX(4px); }

/* === HEADER / NAV =========================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.96);
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
/* AH monogram — always visible */
.logo-mark {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.04em;
  width: 34px;
  height: 34px;
  border: 1.5px solid rgba(255,255,255,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color var(--t);
}
.logo:hover .logo-mark { border-color: #ffffff; }
/* Full name — always visible */
.logo-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.02em;
  max-width: 180px;
  overflow: hidden;
  opacity: 1;
  white-space: nowrap;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.72);
  transition: color var(--t-fast), opacity var(--t-fast);
  letter-spacing: 0.01em;
  position: relative;
  padding: 8px 0;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: #ffffff;
  transition: width var(--t);
}
.main-nav a:hover { color: #ffffff; opacity: 1; }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: #ffffff; }
.main-nav a.active::after { width: 100%; }

.header-cta {
  flex-shrink: 0;
  background: #ffffff !important;
  color: #000000 !important;
  border-color: #ffffff !important;
  padding: 11px 24px !important;
  font-size: 0.85rem !important;
}
.header-cta:hover {
  background: transparent !important;
  color: #ffffff !important;
  border-color: rgba(255,255,255,0.4) !important;
  transform: none !important;
}

/* Mobile toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}
.mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: #ffffff;
  transition: all var(--t);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: var(--near-black);
  border-top: 1px solid var(--border-dark);
  padding: 0 var(--container-padding);
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-dark);
  font-weight: 500;
  transition: color var(--t-fast);
}
.mobile-nav a:hover { color: #ffffff; }
.mobile-nav .mobile-cta {
  padding: 20px 0;
}

/* === HERO VIDEO BANNER ====================================== */
.hero-video-banner {
  position: relative;
  height: 92vh;
  min-height: 560px;
  max-height: 900px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;   /* anchor content to bottom */
  justify-content: center;
  margin-top: 70px;
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
/* Natural gradient: transparent in middle, video breathes, darkens toward bottom */
.hero-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.35) 0%,      /* slight top vignette */
    rgba(0,0,0,0.05) 30%,     /* transparent middle — let video shine */
    rgba(0,0,0,0.05) 50%,
    rgba(10,10,10,0.55) 68%,  /* gentle fade starts */
    rgba(10,10,10,0.88) 82%,  /* solid base for text */
    rgba(10,10,10,0.97) 92%,
    rgba(10,10,10,1.0)  100%
  );
  pointer-events: none;
}
/* Content sits at the bottom of the video */
.hero-video-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-bottom: 48px;
}
.hero-video-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: center;
}
.hero-video-content h2 {
  color: #ffffff;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: -0.025em;
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}
.hero-video-content h2 strong { font-weight: 600; }

/* CTAs on video */
.hero-video-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 28px;
}
/* Force equal width so both buttons match perfectly */
.hero-video-ctas .btn {
  min-width: 190px;
  justify-content: center;
}
.btn-hero-solid {
  background: #ffffff;
  color: #0a0a0a;
  border-color: #ffffff;
}
.btn-hero-solid:hover {
  background: rgba(255,255,255,0.88);
  border-color: rgba(255,255,255,0.88);
}
.btn-hero-outline {
  background: rgba(255,255,255,0.08);
  color: #ffffff;
  border-color: rgba(255,255,255,0.45);
  backdrop-filter: blur(6px);
}
.btn-hero-outline:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.7);
}

/* Logo strip on video */
.hero-video-logos {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-video-logos-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-bottom: 14px;
}
.hero-video-logos-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.hero-logo-img {
  height: 44px;
  max-width: 150px;
  object-fit: contain;
  /* invert(1) flips colours so white bg becomes dark; grayscale(1) desaturates —
     works for both JPGs (opaque bg) and PNGs (transparent bg). */
  filter: invert(1) grayscale(1);
  opacity: 0.80;
  padding: 0 24px;
  border-right: 1px solid rgba(255,255,255,0.1);
  transition: opacity var(--t-fast);
}
.hero-logo-img:last-child { border-right: none; }
.hero-logo-img:hover { opacity: 1; }
/* Solid white CTA on dark bg */
.btn-black {
  background: #ffffff;
  color: #0A0A0A;
  border-color: #ffffff;
}
.btn-black:hover {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.4);
}
/* Outline button on dark bg */
.btn-outline {
  background: transparent;
  color: #ffffff;
  border-color: rgba(255,255,255,0.3);
}
.btn-outline:hover {
  background: #ffffff;
  color: #0A0A0A;
  border-color: #ffffff;
}

/* === FEATURED-IN BAR (hero) ================================= */
.featured-in {
  margin-top: 0;
  padding: 20px 28px 0;
  background: transparent;
  border-radius: 6px;
  border-top: 1px solid var(--border);
  box-sizing: border-box;
  justify-content: center;
}
.featured-in-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 20px;

}
.featured-in-logos {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}
.featured-in-logo-wrap {
  width: 150px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}
.featured-in-logo-wrap:first-child {
  padding-left: 0;
}
.featured-in-logo-wrap:last-child {
  border-right: 1px solid var(--border);
}
.featured-in-logo-img {
  max-height: 44px;
  max-width: 100%;
  width: auto;
  opacity: 0.65;
  transition: opacity var(--t-fast);
  object-fit: contain;
  display: block;
  filter: grayscale(1) invert(1);
}
.featured-in-logo-img:hover {
  opacity: 1;
}
.featured-in-item {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: all var(--t-fast);
  padding: 8px 13px;
  border: 1.5px solid var(--border);
  border-radius: 4px;
  background: rgba(255,255,255,0.03);
  white-space: nowrap;
  flex-shrink: 0;
}
.featured-in-item:hover {
  color: var(--black);
  background: rgba(255,255,255,0.06);
  border-color: var(--text-secondary);
}

/* === TRUST BAR ============================================== */
.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.trust-bar-inner {
  display: flex;
  align-items: stretch;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 36px;
  border-right: 1px solid var(--border);
  flex: 1;
  justify-content: center;
}
.trust-item:last-child { border-right: none; }
.trust-item-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}
.trust-item-dot {
  width: 4px;
  height: 4px;
  background: var(--border);
  border-radius: 50%;
  flex-shrink: 0;
}

/* === CAPABILITIES GRID ====================================== */
.capabilities-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.capability-card {
  background: var(--white);
  padding: 44px 40px;
  transition: background var(--t);
}
.capability-card:hover { background: var(--off-white); }
.capability-number {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-tertiary);
  margin-bottom: 14px;
}
.capability-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 20px;
}
.capability-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.capability-list li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}
.capability-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-tertiary);
  font-size: 0.75rem;
}
@media (max-width: 768px) {
  .capabilities-grid { grid-template-columns: 1fr; }
}

/* === SERVICES CARDS ========================================= */
.services-intro {
  max-width: 600px;
}
.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--border);
  margin-top: 64px;
}
.service-card {
  padding: 52px 48px;
  border-right: 1px solid var(--border);
  position: relative;
  transition: background var(--t);
}
.service-card:last-child { border-right: none; }
.service-card:hover { background: var(--off-white); }

/* accent line on hover */
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.service-card:hover::before { transform: scaleX(1); }

.service-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  border: 1px solid var(--border);
  display: inline-block;
  padding: 5px 12px;
  margin-bottom: 28px;
}
.service-price {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
}
.service-price sup {
  font-size: 1.2rem;
  font-weight: 600;
  vertical-align: super;
}
.service-price-unit {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0;
}
.service-price-note {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.service-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 100%;
}
.service-list {
  margin: 0 0 36px;
}
.service-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text);
}
.service-list li:first-child { border-top: 1px solid var(--border); }
.service-list li::before {
  content: '—';
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}

/* === VALUE PROPS ============================================ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}
.value-card {
  padding: 44px 36px;
  border-right: 1px solid var(--border);
  transition: background var(--t);
}
.value-card:last-child { border-right: none; }
.value-card:hover { background: var(--off-white); }

.value-number {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(255,255,255,0.06);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.04em;
}
.value-card h4 {
  font-size: 1rem;
  line-height: 1.35;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.value-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: none;
}

/* === PROCESS ================================================ */
.process-section { background: var(--off-white); }

.process-track {
  display: flex;
  align-items: flex-start;
  gap: 0;
  position: relative;
  margin-top: 64px;
}
.process-track::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(100% / 12);
  right: calc(100% / 12);
  height: 1px;
  background: var(--border);
}
.process-step {
  flex: 1;
  text-align: center;
  padding: 0 12px;
  position: relative;
}
.step-node {
  width: 72px;
  height: 72px;
  border: 1.5px solid var(--border);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  transition: all var(--t);
}
.process-step:hover .step-node {
  border-color: #ffffff;
  background: #ffffff;
  color: #0A0A0A;
}
.step-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.step-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === TESTIMONIALS =========================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}
.testimonial-card {
  border: 1px solid var(--border);
  padding: 40px 36px;
  position: relative;
  background: var(--white);
  transition: box-shadow var(--t);
}
.testimonial-card:hover {
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}
.quote-mark {
  font-family: var(--font-display);
  font-size: 4.5rem;
  line-height: 0.8;
  color: rgba(255,255,255,0.06);
  margin-bottom: 20px;
  display: block;
  font-weight: 900;
}
.testimonial-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 28px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.author-avatar {
  width: 44px;
  height: 44px;
  background: var(--off-white);
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.author-name  { font-size: 0.875rem; font-weight: 700; }
.author-title { font-size: 0.78rem; color: var(--text-secondary); margin-top: 2px; }

/* === GUARANTEE STRIP ======================================== */
.guarantee-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 0;
  background: var(--white);
}
.guarantee-inner {
  display: flex;
  align-items: center;
  gap: 60px;
}
.guarantee-badge {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border: 2px solid var(--black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.guarantee-badge-pct {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.04em;
}
.guarantee-badge-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
}
.guarantee-content h3 { margin-bottom: 10px; }
.guarantee-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 580px;
}

/* === INSIGHTS NEWSLETTER INLINE ============================ */
.insights-newsletter {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 28px 36px;
  margin-bottom: 52px;
}
.insights-newsletter-content {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.insights-newsletter-text {
  flex: 1;
  min-width: 220px;
}
.insights-newsletter-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 4px;
}
.insights-newsletter-sub {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
}
.insights-newsletter-form {
  display: flex;
  gap: 0;
  flex-shrink: 0;
}
.insights-newsletter-input {
  padding: 11px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-right: none;
  border-radius: 6px 0 0 6px;
  color: var(--black);
  font-size: 0.875rem;
  outline: none;
  width: 220px;
  transition: border-color var(--t);
}
.insights-newsletter-input::placeholder { color: var(--text-tertiary); }
.insights-newsletter-input:focus { border-color: var(--text-secondary); }
@media (max-width: 640px) {
  .insights-newsletter { padding: 20px; }
  .insights-newsletter-content { gap: 16px; }
  .insights-newsletter-form { width: 100%; }
  .insights-newsletter-input { flex: 1; width: auto; }
}

/* === PORTFOLIO SLIDER ======================================= */
.portfolio-section-header {
  position: relative;
  text-align: center;
  margin-bottom: 40px;
}
.portfolio-section-header > div:first-child {
  text-align: center;
}
.slider-controls {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.slider-arrow {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
  color: var(--black);
}
.slider-arrow:hover:not(:disabled) {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
}
.slider-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}
.slider-arrow svg {
  width: 16px;
  height: 16px;
  pointer-events: none;
}
.portfolio-slider {
  display: flex;
  gap: 28px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin-top: 48px;
  padding: 4px 2px 8px;
}
.portfolio-slider::-webkit-scrollbar { display: none; }
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
}
.slider-dot {
  width: 6px;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: width var(--t-fast), background var(--t-fast);
}
.slider-dot.active {
  width: 22px;
  background: var(--black);
}
.portfolio-card {
  flex: 0 0 calc(33.333% - 19px);
  min-width: 260px;
  scroll-snap-align: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--t);
  text-decoration: none;
}
.portfolio-card:hover {
  box-shadow: 0 20px 56px rgba(0,0,0,0.3);
}
.portfolio-card:hover .portfolio-title {
  text-decoration: underline;
}
.portfolio-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: #ffffff;   /* pure white — matches engineering diagram backgrounds */
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.portfolio-img svg {
  width: 100%;
  height: 100%;
}
.portfolio-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.portfolio-img img.diagram {
  object-fit: contain;
  padding: 20px;
  background: #ffffff;
  image-rendering: auto;
}
.portfolio-img img.diagram-fill {
  object-fit: contain;
  padding: 8px;
  background: #ffffff;
}
.portfolio-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.portfolio-category {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.portfolio-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--black);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.portfolio-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  flex: 1;
}

/* === BLOG CARDS ============================================= */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 64px;
}
.blog-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--t);
}
.blog-card:hover {
  box-shadow: 0 20px 56px rgba(0,0,0,0.3);
}
.blog-card:hover .blog-card-title { text-decoration: underline; }

.blog-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--off-white);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.blog-img-placeholder {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-tertiary);
  text-transform: uppercase;
}
.blog-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-meta {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.blog-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--black);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.blog-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  flex: 1;
}
.read-more {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--black);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  transition: gap var(--t-fast);
  margin-top: auto;
}
.read-more:hover { gap: 14px; }
.read-more::after { content: '→'; }

/* === FOOTER ================================================= */
.site-footer {
  background: var(--white);
  border-top: 1px solid var(--border);
}
.footer-main {
  padding: 80px 0 64px;
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: 60px;
}
.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}
.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  max-width: 260px;
}
.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 24px;
}
.footer-contact-item {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  line-height: 1.55;
  transition: color var(--t-fast);
  text-decoration: none;
}
a.footer-contact-item:hover { color: var(--text-secondary); }
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: all var(--t-fast);
  text-transform: uppercase;
}
.footer-social a:hover {
  border-color: var(--text-secondary);
  color: var(--black);
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 20px;
  font-weight: 400;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col li a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--t-fast);
}
.footer-col li a:hover { color: var(--black); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

/* === FORMS ================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}
.form-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.form-input,
.form-textarea,
.form-select {
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--t);
  width: 100%;
}
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--black);
}
.form-textarea { resize: vertical; min-height: 140px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* === PAGE HERO (inner pages) ================================ */
.page-hero {
  background: var(--white);
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    rgba(255,255,255,0.04) 1px,
    transparent 1px
  );
  background-size: 36px 36px;
  pointer-events: none;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1    { color: var(--black); max-width: 700px; }
.page-hero .sub  {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 520px;
  margin-top: 20px;
}
.page-hero .section-label { color: var(--text-tertiary); }
.page-hero .section-label::before { background: var(--border); }

/* === PACKAGE CARDS (services page) ========================= */
.packages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}
.package-card {
  border: 1px solid var(--border);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  transition: all var(--t);
}
.package-card:hover {
  border-color: var(--black);
  box-shadow: 0 20px 56px rgba(0,0,0,0.07);
}
.package-card.featured {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
}
.package-card.featured h4,
.package-card.featured .pkg-price  { color: var(--white); }
.package-card.featured .pkg-desc   { color: rgba(255,255,255,0.55); }
.package-card.featured .service-list li { color: rgba(255,255,255,0.8); border-color: rgba(255,255,255,0.1); }
.package-card.featured .service-list li::before { color: rgba(255,255,255,0.3); }

.pkg-tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  display: block;
}
.package-card.featured .pkg-tag { color: rgba(255,255,255,0.35); }

.pkg-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin: 8px 0 4px;
}
.pkg-price-note {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.package-card.featured .pkg-price-note { color: rgba(255,255,255,0.4); }

.pkg-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  flex: 1;
}

/* === ABOUT SECTION ========================================= */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 72px;
  align-items: start;
}

/* Left column */
.about-photo-col {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.about-photo-wrap {
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--off-white);
}
.about-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.about-social-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.about-social-link {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--t-fast);
  text-decoration: none;
}
.about-social-link:hover { color: var(--black); }
.about-social-link svg { flex-shrink: 0; }

/* Name + title block sits below photo in left column */
.about-photo-identity {
  padding-top: 4px;
}
.about-name {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 6px;
  line-height: 1.2;
}
.about-title-line {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* Right column */
.about-bio-col { padding-top: 0; }
.about-bio p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 20px;
  max-width: 60ch;
}
.about-bio p a {
  color: var(--black);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: border-color var(--t-fast);
}
.about-bio p a:hover { border-color: var(--black); }
.about-affiliations {
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}
.about-affiliations-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 16px;
}
.about-affiliation-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.affiliation-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 12px;
  transition: all var(--t-fast);
}
.affiliation-badge:hover {
  border-color: var(--text-tertiary);
  color: var(--black);
}
.affil-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--text-tertiary);
}

/* Affiliation strip image (under Experience & Education) */
.affiliation-strip-wrap {
  margin-top: 20px;
}
.affiliation-strip-img {
  width: 100%;
  max-width: 560px;
  height: auto;
  display: block;
  opacity: 0.85;
}

/* === BLOG LISTING =========================================== */
.blog-header-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: end;
  margin-bottom: 0;
}
.category-filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 18px;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--t-fast);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--black);
  color: var(--black);
  background: var(--black);
  color: var(--white);
}

/* === CONTACT PAGE ========================================== */
.contact-calendly-wrap {
  display: flex;
  justify-content: center;
}
.contact-calendly {
  width: 100%;
  max-width: 700px;
  overflow: hidden;
  background: transparent;
  border-radius: 0;
  position: relative;
}
.contact-calendly .calendly-inline-widget {
  display: block;
  margin-left: -24px;
  margin-right: -24px;
  width: calc(100% + 48px) !important;
}
.contact-calendly .calendly-inline-widget iframe {
  display: block;
  border-radius: 0;
  width: 100% !important;
}

/* === UTILITIES ============================================= */
.text-center { text-align: center; }
.mt-4  { margin-top: 16px;  }
.mt-8  { margin-top: 32px;  }
.mt-12 { margin-top: 48px;  }
.mb-4  { margin-bottom: 16px; }
.mb-8  { margin-bottom: 32px; }

/* Fade-in animations */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-up.in-view { opacity: 1; transform: translateY(0); }
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* === RESPONSIVE ============================================ */
@media (max-width: 1100px) {
  :root { --container-padding: 36px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo-wrap { max-width: 320px; aspect-ratio: 1; }
  /* contact-grid removed */
}

@media (max-width: 900px) {
  :root { --section-py: 80px; }
  .value-grid { grid-template-columns: 1fr 1fr; }
  .value-card:nth-child(2) { border-right: none; }
  .value-card:nth-child(3) { border-right: 1px solid var(--border); }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { border-right: none; border-bottom: 1px solid var(--border); }
  .service-card:last-child { border-bottom: none; }
  .process-track { flex-wrap: wrap; }
  .process-track::before { display: none; }
  .process-step { flex: 0 0 calc(33.333% - 8px); margin-bottom: 32px; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .portfolio-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .packages-grid { grid-template-columns: 1fr; }
  .credentials-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --section-py: 64px;
    --container-padding: 24px;
  }
  .main-nav    { display: none; }
  .header-cta  { display: none; }
  .mobile-toggle { display: flex; }

  .hero-video-banner { height: 88vh; min-height: 480px; margin-top: 60px; }
  .hero-video-content h2 { font-size: 1.7rem; }
  .hero-video-ctas { flex-direction: column; align-items: center; gap: 10px; }
  .hero-video-logos-row { gap: 0; }
  .hero-logo-img { height: 32px; padding: 0 14px; }

  .trust-bar-inner { flex-direction: column; }
  .trust-item {
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
    flex: none;
    width: 100%;
    justify-content: flex-start;
    padding: 14px 0;
  }
  .trust-item:last-child { border-bottom: none; }

  .section-header { margin-bottom: 48px; }
  .services-grid { border: none; gap: 16px; }
  .service-card { border: 1px solid var(--border); border-radius: 10px; }

  .value-grid { grid-template-columns: 1fr; border: none; gap: 12px; }
  .value-card { border: 1px solid var(--border); border-right: 1px solid var(--border) !important; border-radius: 10px; }

  .process-step { flex: 0 0 calc(50% - 8px); }

  .guarantee-inner { flex-direction: column; gap: 32px; text-align: center; }

  .newsletter-form { flex-direction: column; }
  .newsletter-input { border-right: 1px solid rgba(255,255,255,0.15); border-bottom: none; }

  .portfolio-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .blog-header-grid { grid-template-columns: 1fr; }
  /* contact-grid removed */

  h2 { font-size: 1.875rem; }
  h3 { font-size: 1.3rem; }

  .footer-main { grid-template-columns: 1fr 1fr; gap: 32px; padding: 60px 0 48px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .form-grid { grid-template-columns: 1fr; }
  .credentials-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .process-step { flex: 0 0 100%; }
  .footer-main { grid-template-columns: 1fr; }
  .featured-in-logo-wrap { width: 110px; height: 44px; padding: 0 10px; }
  .featured-in-logo-img { max-height: 32px; }
  .featured-in-item { font-size: 0.65rem; padding: 6px 9px; }
  .hero-ctas { gap: 12px; }
}

/* === TABLET TWEAKS (768–1100px) ============================= */
@media (min-width: 769px) and (max-width: 1100px) {
  .footer-main { grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
  .blog-grid { grid-template-columns: 1fr 1fr; }
  .packages-grid { grid-template-columns: 1fr 1fr; }
  .package-card.featured { grid-column: 1 / -1; }
  .about-grid { grid-template-columns: 260px 1fr; gap: 48px; }
  /* contact-grid removed */
  .featured-in-logo-wrap { width: 130px; height: 50px; padding: 0 14px; }
  .featured-in-logo-img { max-height: 38px; }
  .featured-in-item { font-size: 0.68rem; }
}


body.nav-open {
  overflow: hidden;
}

.main-nav li {
  display: flex;
  align-items: center;
}

.mobile-nav {
  box-shadow: 0 18px 40px rgba(0,0,0,0.22);
}

.mobile-nav a.active {
  color: #ffffff;
}

@media (min-width: 901px) {
  .main-nav {
    margin-left: auto;
  }
}