/* ========================================
   CMV Solutions — Theme
   ======================================== */

/* ---------- Custom Properties ---------- */
:root {
  --blue: #3648d6;
  --blue-light: #4a5ce8;
  --blue-dark: #2a3ab8;
  --blue-glow: rgba(54, 72, 214, 0.15);
  --blue-glow-strong: rgba(54, 72, 214, 0.3);

  --dark-900: #0a0e1a;
  --dark-800: #111628;
  --dark-700: #1a2035;
  --dark-600: #242b42;

  --white: #ffffff;
  --light-100: #f8f9fc;
  --light-200: #eef0f5;
  --light-300: #dfe2ea;
  --light-400: #c5c9d6;

  --text-dark: #1a1e2a;
  --text-body: #555e74;
  --text-muted: #8690a8;
  --text-white: #ffffff;

  --font: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --header-h: 72px;
  --container: 1140px;
  --section-pad: 120px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.1);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.15);
  --shadow-card: 0 4px 20px rgba(0,0,0,0.08);
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text-dark);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font); line-height: 1.15; }
button { font-family: var(--font); }

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

/* ---------- Section Header ---------- */
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text-dark);
  text-align: center;
  letter-spacing: -0.02em;
}
.section-title--light { color: var(--white); }

.section-divider {
  width: 50px;
  height: 3px;
  background: var(--blue);
  margin: 16px auto 0;
  border-radius: 2px;
}
.section-divider--light { background: rgba(255,255,255,0.4); }

.section-header-centered {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-subtitle {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-body);
  margin-top: 20px;
}
.section-subtitle--light { color: rgba(255,255,255,0.6); }

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 14px 32px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.35s var(--ease-out);
  text-decoration: none;
  letter-spacing: 0.2px;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--blue-light);
  border-color: var(--blue-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px var(--blue-glow-strong);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn-white {
  background: var(--white);
  color: var(--blue);
  border-color: var(--white);
  font-weight: 700;
}
.btn-white:hover {
  background: var(--light-200);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.15);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline-white:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.btn-large {
  padding: 18px 40px;
  font-size: 1rem;
}

/* ========================================
   SCROLL REVEAL
   ======================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-up.visible { opacity: 1; transform: translateY(0); }

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

@media (prefers-reduced-motion: reduce) {
  .reveal-up, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1; transform: none; transition: none;
  }
}

/* ========================================
   HEADER / NAVIGATION
   ======================================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.04);
}
.site-header.scrolled .nav-logo { color: var(--text-dark); }
.site-header.scrolled .nav-links a { color: var(--text-body); }
.site-header.scrolled .nav-links a:hover { color: var(--blue); }
.site-header.scrolled .nav-cta { background: var(--blue); color: var(--white) !important; }
.site-header.scrolled .nav-toggle span { background: var(--text-dark); }

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
  letter-spacing: -0.02em;
  transition: color 0.3s ease;
}
.nav-logo svg { opacity: 0.9; }
.nav-logo-img {
  height: 36px;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
}
.nav-logo-img--footer {
  height: 32px;
  filter: brightness(1.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.88rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.3s ease;
}
.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}
.nav-cta {
  background: var(--blue) !important;
  color: var(--white) !important;
  padding: 10px 24px !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
}
.nav-cta:hover {
  background: var(--blue-light) !important;
  transform: translateY(-1px);
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(24px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
  }
  .nav-links.open { opacity: 1; visibility: visible; }
  .nav-links a { font-size: 1.4rem; color: rgba(255,255,255,0.85); }
}

/* ========================================
   HERO — City Skyline Parallax
   ======================================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--dark-900);
}
.hero-parallax-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
}
.hero-city {
  position: absolute;
  inset: -20% 0 0 0;
  height: 140%;
  background: url('../assets/hong-kong-skyline.jpg') center 40% / cover no-repeat;
  will-change: transform;
  transition: none;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(180deg,
      rgba(10,14,26,0.4) 0%,
      rgba(10,14,26,0.25) 25%,
      rgba(10,14,26,0.3) 45%,
      rgba(10,14,26,0.35) 60%,
      rgba(10,14,26,0.7) 85%,
      rgba(10,14,26,0.92) 100%
    );
}
.hero-foliage-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 12%;
  z-index: 3;
  background: linear-gradient(180deg, rgba(10,14,26,0.7) 0%, transparent 100%);
}
.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: 0 28px;
  width: 100%;
  max-width: 800px;
  will-change: contents;
}
.hero-title {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  text-shadow: 0 2px 24px rgba(0,0,0,0.4), 0 1px 4px rgba(0,0,0,0.3);
  contain: layout style;
}
.hero-line {
  display: block;
  opacity: 0;
  transform: translateY(40px);
  animation: heroReveal 0.9s var(--ease-out) forwards;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.hero-line--1 { animation-delay: 0.3s; }
.hero-line--2 { animation-delay: 0.55s; }
.hero-title em {
  font-style: italic;
  color: #ffffff;
}
.hero-rotate {
  display: inline-block;
  position: relative;
  overflow: hidden;
  vertical-align: bottom;
  padding-right: 0.05em;
}
.hero-rotate__word {
  display: inline-block;
  position: absolute;
  left: 0;
  top: 0;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
  font-style: italic;
  color: var(--blue-light);
  text-shadow: 0 2px 24px rgba(54, 72, 214, 0.4), 0 1px 4px rgba(0,0,0,0.3);
}
.hero-rotate__word.active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
}
.hero-rotate__word.exit-up {
  opacity: 0;
  transform: translateY(-100%);
}
.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: #ffffff;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5), 0 1px 4px rgba(0,0,0,0.4);
  line-height: 1.7;
  max-width: 540px;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin: 0 auto 32px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.8s var(--ease-out) 0.8s forwards;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(30px);
  animation: heroReveal 0.8s var(--ease-out) 1s forwards;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
@keyframes heroReveal {
  0% { opacity: 0; transform: translateY(40px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Scroll indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: heroReveal 0.6s var(--ease-out) 1.5s forwards;
}
.hero-scroll-indicator span {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-left: -3px;
  color: rgba(255,255,255,0.35);
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, rgba(255,255,255,0.4), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

@media (max-width: 768px) {
  .hero { min-height: 100vh; }
  .hero-title { font-size: clamp(2rem, 8vw, 3.2rem); }
  .hero-actions { flex-direction: column; align-items: center; gap: 16px; }
}

/* ========================================
   OUR APPROACH
   ======================================== */
.philosophy {
  padding: var(--section-pad) 0;
  background: var(--white);
  position: relative;
}
.philosophy-header {
  text-align: center;
  margin-bottom: 72px;
}
.philosophy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.philosophy-text {
  max-width: 480px;
}
.philosophy-lead {
  font-size: 1.08rem;
  font-weight: 500;
  color: var(--text-dark);
  line-height: 1.75;
  margin-bottom: 20px;
}
.philosophy-text p {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 16px;
}

/* Approach — Principles */
.approach-visuals {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.approach-principles {
  border: 1px solid var(--light-200);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 16px;
}

.principle {
  padding: 28px 30px;
  border-bottom: 1px solid var(--light-200);
  transition: background 0.3s ease;
}
.principle:last-child { border-bottom: none; }
.principle:hover {
  background: var(--light-100);
}

.principle__header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}
.principle__number {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--blue);
  background: rgba(54, 72, 214, 0.07);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.5px;
}
.principle h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  letter-spacing: -0.01em;
}
.principle p {
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.7;
  padding-left: 46px;
}

/* Approach — Credentials Banner */
.approach-banner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 28px;
  background: var(--dark-800);
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.06);
}
.approach-banner__stat {
  flex: 1;
}
.approach-banner__label {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.approach-banner__value {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.35;
}
.approach-banner__divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  flex-shrink: 0;
}

@media (max-width: 1100px) {
  .philosophy-grid { gap: 48px; }
}
@media (max-width: 900px) {
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* ========================================
   SERVICES
   ======================================== */
.services-section {
  padding: var(--section-pad) 0;
  background: var(--dark-800);
  color: var(--text-white);
  position: relative;
}
/* Gradient transition from white into dark */
.services-section::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, var(--white), var(--dark-800));
  pointer-events: none;
}

.services-section .section-title { color: var(--white); }
.services-section .section-subtitle { color: var(--text-muted); }
.services-section .section-divider { background: var(--blue-light); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  padding: 36px 28px;
  transition: all 0.4s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue-light), transparent);
  opacity: 0;
  transition: opacity 0.4s var(--ease-out);
}
.service-card:hover::before { opacity: 1; }
.service-card:hover {
  border-color: rgba(54, 72, 214, 0.25);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 40px var(--blue-glow);
  background: rgba(255,255,255,0.05);
}

.service-card__icon {
  color: var(--blue-light);
  margin-bottom: 20px;
  transition: transform 0.4s var(--ease-out);
}
.service-card:hover .service-card__icon {
  transform: scale(1.1) translateY(-2px);
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--white);
}
.service-card p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-card__tags span {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-muted);
  background: rgba(255,255,255,0.05);
  padding: 4px 12px;
  border-radius: 9999px;
  border: 1px solid rgba(255,255,255,0.06);
  letter-spacing: 0.3px;
  transition: all 0.3s ease;
}
.service-card:hover .service-card__tags span {
  border-color: rgba(54, 72, 214, 0.2);
}

@media (max-width: 1023px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ========================================
   PROCESS
   ======================================== */
.process-section {
  padding: var(--section-pad) 0;
  background: var(--light-100);
  position: relative;
}
/* Dot grid pattern */
.process-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, var(--light-300) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.3;
  pointer-events: none;
}
.process-section .container {
  position: relative;
  z-index: 1;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
/* Connector line */
.process-steps::before {
  content: '';
  position: absolute;
  top: 42px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--light-300), var(--light-300), transparent);
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}
.process-step__number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--blue);
  opacity: 0.15;
  margin-bottom: 20px;
  line-height: 1;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.process-step:hover .process-step__number {
  opacity: 0.6;
  transform: scale(1.05);
}
.process-step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-dark);
  opacity: 1 !important;
}
.process-step p {
  font-size: 0.88rem;
  color: #444b5e;
  line-height: 1.7;
  opacity: 1 !important;
}

@media (max-width: 768px) {
  .process-steps {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-left: 52px;
  }
  .process-steps::before {
    top: 0; bottom: 0; left: 18px; right: auto;
    width: 1px; height: auto;
  }
  .process-step { text-align: left; }
  .process-step__number {
    font-size: 1.5rem;
    position: absolute;
    left: -52px;
    top: 0;
  }
}

/* ========================================
   INDUSTRIES
   ======================================== */
.industries-section {
  padding: var(--section-pad) 0;
  position: relative;
  overflow: hidden;
  background: var(--blue);
  color: var(--white);
}
.industries-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 80%, rgba(0,0,0,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.industry-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all 0.4s var(--ease-out);
}
.industry-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
  border-color: rgba(255,255,255,0.2);
}

.industry-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: 18px;
  transition: transform 0.4s var(--ease-out);
}
.industry-card:hover .industry-card__icon {
  transform: scale(1.08);
}

.industry-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--white);
}
.industry-card p {
  font-size: 0.86rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

@media (max-width: 1023px) {
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .industries-grid { grid-template-columns: 1fr; }
}

/* ========================================
   FAQ
   ======================================== */
.faq-section {
  padding: var(--section-pad) 0;
  background: var(--light-50);
}
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--light-200);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item.active {
  border-color: var(--blue);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  gap: 16px;
  transition: color 0.3s ease;
}
.faq-question:hover {
  color: var(--blue);
}
.faq-chevron {
  flex-shrink: 0;
  transition: transform 0.3s var(--ease-out);
  color: var(--text-muted);
}
.faq-item.active .faq-chevron {
  transform: rotate(180deg);
  color: var(--blue);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out), padding 0.4s var(--ease-out);
}
.faq-item.active .faq-answer {
  max-height: 300px;
}
.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-body);
  line-height: 1.75;
  font-size: 0.95rem;
}

/* ========================================
   CONTACT
   ======================================== */
.contact-section {
  padding: var(--section-pad) 0;
  background: var(--dark-800);
  position: relative;
  overflow: hidden;
}
/* Gradient transition from blue into dark */
.contact-section::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(180deg, var(--blue), var(--dark-800));
  pointer-events: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 72px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.contact-title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.contact-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-detail-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.contact-detail-item svg {
  color: var(--blue-light);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-detail-item strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 2px;
}
.contact-detail-item p {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin: 0;
}
.contact-detail-item a {
  color: var(--blue-light);
  font-weight: 500;
  transition: color 0.25s ease;
}
.contact-detail-item a:hover { color: #7b8ff8; }

/* Form */
.contact-form-wrap {
  background: rgba(21, 26, 43, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(255,255,255,0.06);
}

.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 7px;
  letter-spacing: 0.3px;
}
.form-optional {
  font-weight: 400;
  opacity: 0.6;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--white);
  background: rgba(28, 34, 54, 0.8);
  border: 1px solid var(--dark-600);
  border-radius: 12px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-glow);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(134, 144, 168, 0.5);
}
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238690a8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}
.form-group select option {
  background: var(--dark-700);
  color: var(--white);
}
.form-group textarea {
  resize: vertical;
  min-height: 90px;
}

.btn-full { width: 100%; }

.contact-form-success {
  text-align: center;
  padding: 48px 20px;
}
.contact-form-success svg {
  color: var(--blue-light);
  margin: 0 auto 16px;
}
.contact-form-success h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--white);
}
.contact-form-success p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .contact-form-wrap { padding: 28px; }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--dark-900);
  color: var(--white);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.nav-logo--footer {
  color: var(--white);
  margin-bottom: 16px;
  display: inline-flex;
}
.footer-brand p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 280px;
  margin-top: 12px;
}
.footer-col h4 {
  font-size: 0.76rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 18px;
  color: rgba(255,255,255,0.5);
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: color 0.3s ease;
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ========================================
   SELECTION & FOCUS
   ======================================== */
::selection {
  background: var(--blue);
  color: var(--white);
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--light-100); }
::-webkit-scrollbar-thumb {
  background: var(--light-400);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ========================================
   MOBILE OPTIMIZATIONS
   ======================================== */

/* --- Tablets (max-width: 768px) --- */
@media (max-width: 768px) {
  :root {
    --section-pad: 72px;
    --header-h: 64px;
  }

  .container { padding: 0 20px; }

  .section-header-centered { margin: 0 auto 40px; }
  .section-subtitle { font-size: 0.92rem; }

  /* Nav — better mobile menu spacing */
  .nav-container { padding: 0 20px; }
  .nav-links a { padding: 12px 20px; }
  .nav-cta { margin-top: 8px; }

  /* Hero — tighter on mobile */
  .hero-content { padding: 0 20px; }
  .hero-subtitle {
    font-size: 0.95rem;
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
  }
  .hero-scroll-indicator { bottom: 24px; }

  /* Philosophy / Approach — stack properly */
  .philosophy-header { margin-bottom: 40px; }
  .philosophy-text { max-width: 100%; }
  .principle { padding: 22px 20px; }
  .principle p { padding-left: 0; margin-top: 6px; }
  .principle__header { gap: 10px; }

  .approach-banner {
    flex-direction: column;
    gap: 16px;
    padding: 20px;
    text-align: center;
  }
  .approach-banner__divider {
    width: 40px;
    height: 1px;
  }

  /* Services — better card spacing */
  .service-card {
    padding: 28px 22px;
  }

  /* Process — already handled above, just refine */
  .process-steps { gap: 32px; }

  /* Industries — tighter cards */
  .industry-card { padding: 24px 20px; }

  /* Contact — single column handled, refine form */
  .contact-title { font-size: 1.6rem; }
  .contact-form-wrap {
    padding: 24px;
    border-radius: 16px;
  }
  .form-group input,
  .form-group select,
  .form-group textarea {
    padding: 12px 14px;
    font-size: 16px; /* prevents iOS zoom on focus */
  }

  /* Footer */
  .footer { padding: 48px 0 0; }
  .footer-grid { padding-bottom: 32px; }
  .footer-brand p { max-width: 100%; }
}

/* --- Small phones (max-width: 480px) --- */
@media (max-width: 480px) {
  :root {
    --section-pad: 56px;
  }

  .container { padding: 0 16px; }

  .section-title { font-size: clamp(1.4rem, 6vw, 1.8rem); }

  /* Hero */
  .hero { min-height: 100svh; } /* safe viewport height for mobile browsers */
  .hero-title { font-size: clamp(1.8rem, 9vw, 2.6rem); }
  .hero-subtitle {
    font-size: 0.88rem;
    max-width: 100%;
    margin-bottom: 24px;
  }
  .hero-actions .btn {
    padding: 12px 28px;
    font-size: 0.85rem;
    max-width: 100%;
  }

  /* Philosophy */
  .philosophy-lead { font-size: 1rem; }
  .philosophy-text p { font-size: 0.9rem; }

  /* Service cards */
  .service-card {
    padding: 24px 18px;
    border-radius: 14px;
  }
  .service-card h3 { font-size: 1rem; }
  .service-card p { font-size: 0.84rem; }

  /* Process steps */
  .process-steps { padding-left: 44px; }
  .process-step__number { left: -44px; }

  /* Industry cards */
  .industry-card {
    padding: 22px 18px;
    border-radius: 14px;
  }

  /* Contact */
  .contact-title { font-size: 1.4rem; }
  .contact-desc { font-size: 0.88rem; margin-bottom: 24px; }
  .contact-form-wrap { padding: 20px 16px; }

  /* Footer */
  .footer-col h4 { margin-bottom: 12px; }
  .footer-bottom { font-size: 0.72rem; }
}

/* --- Touch-friendly improvements --- */
@media (hover: none) and (pointer: coarse) {
  /* Remove hover transforms on touch devices to prevent sticky hover states */
  .service-card:hover {
    transform: none;
    box-shadow: none;
    background: rgba(255,255,255,0.03);
    border-color: rgba(255,255,255,0.06);
  }
  .service-card:hover::before { opacity: 0; }
  .industry-card:hover {
    transform: none;
    box-shadow: none;
  }
  .btn-primary:hover,
  .btn-outline:hover {
    transform: none;
  }

  /* Active states instead for touch feedback */
  .service-card:active {
    background: rgba(255,255,255,0.06);
    border-color: rgba(54, 72, 214, 0.2);
  }
  .industry-card:active {
    background: rgba(255,255,255,0.12);
  }
  .btn:active {
    transform: scale(0.97);
  }

  /* Larger tap targets */
  .nav-toggle { padding: 10px; }
  .footer-col a { padding: 4px 0; }
}

/* --- Safe area insets for notched phones --- */
@supports (padding: env(safe-area-inset-bottom)) {
  .footer-bottom {
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
  }
  .hero-scroll-indicator {
    bottom: calc(24px + env(safe-area-inset-bottom));
  }
  .nav-links {
    padding-bottom: env(safe-area-inset-bottom);
  }
}