/* ═══════════════════════════════════════════════════════════════
   ReachRight AI – Black & White Design System v2
   Enhanced with hero bg, illustrations, micro-animations
   ═══════════════════════════════════════════════════════════════ */

/* ─── RESET & BASE ──────────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

::selection {
  background-color: var(--accent);
  color: #fff;
}

/* ─── COLOR SYSTEM (Modern dark mode via color-scheme) ────── */
:root {
  color-scheme: light dark;

  /* Brand accent – restrained electric blue */
  --accent-light: #2563eb;
  --accent-dark: #60a5fa;
  --accent: var(--accent-light);

  /* Backgrounds */
  --bg-primary-light: #F8F8F8;
  --bg-primary-dark: #0B0B0D;
  --bg-primary: var(--bg-primary-light);

  --bg-secondary-light: #FFFFFF;
  --bg-secondary-dark: #111114;
  --bg-secondary: var(--bg-secondary-light);

  --bg-elevated-light: #FFFFFF;
  --bg-elevated-dark: #18181B;
  --bg-elevated: var(--bg-elevated-light);

  /* Text */
  --text-primary-light: #111111;
  --text-primary-dark: #F5F5F5;
  --text-primary: var(--text-primary-light);

  --text-secondary-light: #555555;
  --text-secondary-dark: #A0A0A0;
  --text-secondary: var(--text-secondary-light);

  --text-muted-light: #888888;
  --text-muted-dark: #666666;
  --text-muted: var(--text-muted-light);

  /* Borders */
  --border-light: #E5E5E5;
  --border-dark: #2A2A2D;
  --border: var(--border-light);

  --border-subtle-light: #F0F0F0;
  --border-subtle-dark: #1F1F22;
  --border-subtle: var(--border-subtle-light);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);

  /* Typography */
  --font-display: 'Instrument Serif', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --fs-hero: clamp(2.2rem, 5vw, 3.5rem);
  --fs-h2: clamp(1.75rem, 3.5vw, 2.5rem);
  --fs-h3: clamp(1.15rem, 2vw, 1.4rem);
  --fs-body: 1rem;
  --fs-sm: 0.875rem;

  /* Spacing */
  --section-py: clamp(4rem, 8vw, 7rem);
  --container-px: clamp(1.25rem, 4vw, 2.5rem);
  --container-max: 1200px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  /* Card Translucent variables */
  --card-translucent-bg: rgba(255, 255, 255, 0.7);
  --card-translucent-border: rgba(0, 0, 0, 0.05);
  --card-translucent-shadow: 0 4px 16px rgba(0, 0, 0, 0.02), inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* Dark mode via prefers-color-scheme */
@media (prefers-color-scheme: dark) {
  :root {
    --accent: var(--accent-dark);
    --bg-primary: var(--bg-primary-dark);
    --bg-secondary: var(--bg-secondary-dark);
    --bg-elevated: var(--bg-elevated-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --text-muted: var(--text-muted-dark);
    --border: var(--border-dark);
    --border-subtle: var(--border-subtle-dark);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.4);

    --card-translucent-bg: rgba(20, 20, 23, 0.55);
    --card-translucent-border: rgba(255, 255, 255, 0.04);
    --card-translucent-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), inset 0 1px 1px rgba(255, 255, 255, 0.05);
  }
}

/* Manual dark mode class override */
html.dark-mode {
  --accent: var(--accent-dark);
  --bg-primary: var(--bg-primary-dark);
  --bg-secondary: var(--bg-secondary-dark);
  --bg-elevated: var(--bg-elevated-dark);
  --text-primary: var(--text-primary-dark);
  --text-secondary: var(--text-secondary-dark);
  --text-muted: var(--text-muted-dark);
  --border: var(--border-dark);
  --border-subtle: var(--border-subtle-dark);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.4);

  --card-translucent-bg: rgba(20, 20, 23, 0.55);
  --card-translucent-border: rgba(255, 255, 255, 0.04);
  --card-translucent-shadow: 0 8px 24px rgba(0, 0, 0, 0.2), inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

html.light-mode {
  --accent: var(--accent-light);
  --bg-primary: var(--bg-primary-light);
  --bg-secondary: var(--bg-secondary-light);
  --bg-elevated: var(--bg-elevated-light);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --text-muted: var(--text-muted-light);
  --border: var(--border-light);
  --border-subtle: var(--border-subtle-light);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --card-translucent-bg: rgba(255, 255, 255, 0.7);
  --card-translucent-border: rgba(0, 0, 0, 0.05);
  --card-translucent-shadow: 0 4px 16px rgba(0, 0, 0, 0.02), inset 0 1px 1px rgba(255, 255, 255, 0.8);
}

/* ─── BASE STYLES ───────────────────────────────────────────── */
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--text-primary);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--fs-h2);
  color: var(--text-primary);
}

h3 {
  font-size: var(--fs-h3);
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: -0.01em;
}

ul {
  list-style: none;
}


/* ─── BUTTONS (Enhanced with micro-animations) ──────────── */
.btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--fs-body);
  padding: 12px 24px;
  border: 1.5px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: all var(--transition-normal) cubic-bezier(0.25, 0.46, 0.45, 0.94);
  text-decoration: none;
  text-align: center;
  line-height: 1.3;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
}
.btn-primary:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.25);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--text-primary);
  transform: translateY(-2px) scale(1.03);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
}

.btn-sm {
  padding: 8px 20px;
  font-size: var(--fs-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--fs-body);
}

.btn-subtext {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.7;
  line-height: 1.3;
}

/* Hero button arrow micro-animation */
.btn-hero .link-arrow,
.btn-hero::after {
  transition: transform var(--transition-normal);
}

/* Service link arrow animation */
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
}
.service-link:hover {
  color: var(--accent);
  gap: 8px;
}
.service-link .link-arrow {
  display: inline-block;
  transition: transform var(--transition-normal);
}
.service-link:hover .link-arrow {
  transform: translateX(4px);
}


/* ═══════════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════════ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-slow), backdrop-filter var(--transition-slow), border-color var(--transition-slow);
}

#site-header.scrolled {
  background-color: color-mix(in srgb, var(--bg-primary) 80%, transparent);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom-color: color-mix(in srgb, var(--border) 50%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Logo – uses brand images */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  text-decoration: none;
}
.logo:hover { color: var(--text-primary); }

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

/* Show light logo, hide dark logo by default */
.logo-dark { display: none; }
.logo-light { display: block; }

/* Dark mode: swap logos */
html.dark-mode .logo-dark { display: block; }
html.dark-mode .logo-light { display: none; }

@media (prefers-color-scheme: dark) {
  .logo-dark { display: block; }
  .logo-light { display: none; }
  html.light-mode .logo-dark { display: none; }
  html.light-mode .logo-light { display: block; }
}

/* Nav */
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background-color: var(--accent);
  transition: width var(--transition-normal) cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--text-primary); }
.nav-links a.active::after { width: 100%; }

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

#theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
}
#theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(15deg);
}

/* Show/hide sun/moon based on theme */
.icon-moon { display: none; }
html.dark-mode .icon-sun { display: none; }
html.dark-mode .icon-moon { display: block; }

@media (prefers-color-scheme: dark) {
  .icon-sun { display: none; }
  .icon-moon { display: block; }
  html.light-mode .icon-sun { display: block; }
  html.light-mode .icon-moon { display: none; }
}

/* Mobile menu toggle */
#mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  padding: 8px;
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 1.5px;
  background-color: var(--text-primary);
  transition: all var(--transition-normal);
  transform-origin: center;
}

#mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
#mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}
#mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-primary);
  z-index: 999;
  display: none;
  padding: 2rem var(--container-px);
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.mobile-menu.open {
  display: block;
  opacity: 1;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.mobile-nav-links li {
  border-bottom: 1px solid var(--border-subtle);
}
.mobile-nav-links a {
  display: block;
  padding: 16px 0;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
}

.mobile-cta {
  margin-top: 2rem;
  width: 100%;
  text-align: center;
}


/* ═══════════════════════════════════════════════════════════════
   HERO – Full visual overhaul with background image
   ═══════════════════════════════════════════════════════════════ */
.hero-section {
  padding-top: calc(72px + var(--section-py));
  padding-bottom: var(--section-py);
  background-color: var(--bg-primary);
  position: relative;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Hero background image */
.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
  opacity: 0.08;
  pointer-events: none;
}
.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* Dark mode: hero bg more visible */
html.dark-mode .hero-bg { opacity: 0.15; }
@media (prefers-color-scheme: dark) {
  .hero-bg { opacity: 0.15; }
  html.light-mode .hero-bg { opacity: 0.08; }
}

/* Hero overlay gradient for text legibility */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--bg-primary) 90%, transparent) 0%,
    color-mix(in srgb, var(--bg-primary) 60%, transparent) 60%,
    color-mix(in srgb, var(--bg-primary) 40%, transparent) 100%
  );
  pointer-events: none;
}

/* Subtle grid background */
.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 100px;
  margin-bottom: 1.5rem;
  animation: badge-glow 3s ease-in-out infinite;
}

@keyframes badge-glow {
  0%, 100% { box-shadow: 0 0 0 0 transparent; }
  50% { box-shadow: 0 0 20px -8px var(--accent); }
}

h1 {
  font-size: var(--fs-hero);
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  line-height: 1.1;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-bullets {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 2.5rem;
}

.hero-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.bullet-icon {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero visual – illustration card */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: hero-float 6s ease-in-out infinite;
}

.hero-image-wrapper {
  position: relative;
  max-width: 480px;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 60px -20px rgba(37, 99, 235, 0.15);
  border: 1px solid var(--border);
  transition: transform 0.1s ease-out;
}

.hero-illustration {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

@keyframes hero-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Trust row */
.trust-row {
  margin-top: 3rem;
  text-align: center;
  position: relative;
  z-index: 2;
}

.logo-marquee-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.trust-row-title {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2rem;
}

.logo-marquee {
  overflow: hidden;
  white-space: nowrap;
  width: 100%;
  position: relative;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logo-marquee-track {
  display: inline-flex;
  gap: 4rem;
  animation: marquee-scroll 25s linear infinite;
  align-items: center;
  padding-right: 4rem; /* Match the gap for perfect loop */
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px; /* Forces even spacing blocks for all logos */
  gap: 0.75rem;
  opacity: 0.7;
  transition: opacity var(--transition-normal);
  color: var(--text-muted);
}

.marquee-item:hover {
  opacity: 1;
}

.marquee-logo {
  display: block;
  height: 48px !important;
  width: auto;
  color: var(--text-muted);
}

.marquee-logo,
.marquee-logo * {
  fill: currentColor !important;
}

.marquee-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.marquee-item:hover .marquee-name,
.marquee-item:hover .marquee-logo {
  color: var(--text-primary);
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.trust-line {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}


/* ═══════════════════════════════════════════════════════════════
   SECTIONS (shared)
   ═══════════════════════════════════════════════════════════════ */
.section {
  padding: var(--section-py) 0;
  background-color: var(--bg-primary);
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 0.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* Section heading underline animation */
.section-header h2 {
  position: relative;
  display: inline-block;
}
.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.section-header h2.revealed::after {
  width: 100%;
}


/* ═══════════════════════════════════════════════════════════════
   SERVICES – Cards with illustrations
   ═══════════════════════════════════════════════════════════════ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.service-card {
  display: flex;
  flex-direction: column;
  background: var(--card-translucent-bg);
  border: 1px solid var(--card-translucent-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1),
              border-color var(--transition-slow) cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--card-translucent-shadow);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.service-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--card-translucent-border));
  box-shadow: var(--shadow-lg), 0 8px 32px 0 rgba(0, 0, 0, 0.05);
}

html.dark-mode .service-card:hover {
  box-shadow: var(--shadow-lg), 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

@media (min-width: 992px) {
  .service-card.featured {
    grid-column: span 2;
    flex-direction: row !important;
    align-items: center;
    gap: 3rem;
  }
  .service-card.featured .service-info-col {
    flex: 1.2;
  }
  .service-card.featured .service-visual-col {
    flex: 1;
    margin: 0;
  }
}

.service-info-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  flex-grow: 1;
}

.service-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.service-title {
  font-size: 1.45rem;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
  margin: 0;
}

.service-proof {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent);
  background-color: color-mix(in srgb, var(--accent) 6%, transparent);
  padding: 6px 12px;
  border-radius: 100px;
  align-self: flex-start;
  border: 1px solid color-mix(in srgb, var(--accent) 12%, transparent);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.service-card:hover .service-proof {
  background-color: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 25%, transparent);
}

.proof-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
  display: inline-block;
  box-shadow: 0 0 8px var(--accent);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0;
}

.service-visual-col {
  width: 100%;
}

.service-visual {
  position: relative;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: radial-gradient(circle at center, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 70%);
}

.service-visual svg {
  width: 100%;
  max-width: 220px;
  height: 100%;
  max-height: 110px;
  transition: transform var(--transition-slow);
}

.service-visual svg path,
.service-visual svg line,
.service-visual svg rect,
.service-visual svg circle {
  transition: stroke var(--transition-normal), fill var(--transition-normal), stroke-width var(--transition-normal);
}

.service-card:hover .service-visual svg {
  transform: scale(1.03);
}

/* CTA styling */
.service-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: auto;
  padding-top: 0.5rem;
  transition: color var(--transition-normal);
}

.service-cta .cta-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-normal);
}

.service-card:hover .service-cta .cta-arrow {
  transform: translateX(4px);
}


/* ═══════════════════════════════════════════════════════════════
   SOLUTIONS (DEEP-DIVE)
   ═══════════════════════════════════════════════════════════════ */
.solution-block {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}
.solution-block:last-child {
  border-bottom: none;
}

.solution-content {
  flex: 1;
}
.solution-content h3 {
  margin-bottom: 0.75rem;
}
.solution-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  max-width: 600px;
}

.solution-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1rem;
}
.solution-bullets li {
  color: var(--text-secondary);
  font-size: 0.93rem;
  padding-left: 1rem;
  position: relative;
}
.solution-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.solution-number {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--border);
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--transition-slow);
}
.solution-block:hover .solution-number {
  color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.outcome-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.outcome-chip {
  display: inline-flex;
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 100px;
}


/* ═══════════════════════════════════════════════════════════════
   PROCESS TIMELINE – with step icons
   ═══════════════════════════════════════════════════════════════ */
.timeline {
  position: relative;
  padding-left: 60px;
  max-width: 700px;
  margin: 0 auto;
}

/* Vertical line */
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 1px;
  background-color: var(--border);
}

.timeline-step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem 0;
  position: relative;
}

.step-number {
  position: absolute;
  left: -60px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background-color: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-slow);
  z-index: 1;
}

.timeline-step:hover .step-number {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px -6px var(--accent);
}

.step-content h3 {
  margin-bottom: 0.5rem;
}
.step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.process-notes {
  max-width: 700px;
  margin: 2rem auto 0;
  padding: 1.5rem 2rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--accent);
}
.process-notes p {
  font-style: italic;
  color: var(--text-secondary);
  font-size: 0.93rem;
}
.process-notes p + p { margin-top: 0.5rem; }


/* ═══════════════════════════════════════════════════════════════
   CASE STUDIES
   ═══════════════════════════════════════════════════════════════ */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 3rem;
}

.case-card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-slow);
}
.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.case-tag {
  display: inline-flex;
  padding: 4px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 100px;
  margin-bottom: 1rem;
}

.case-card h3 {
  margin-bottom: 1.25rem;
}

.case-detail {
  margin-bottom: 1rem;
}
.case-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.case-detail p {
  color: var(--text-secondary);
  font-size: 0.93rem;
}

.case-result p {
  color: var(--text-primary);
}
.case-result strong {
  color: var(--accent);
}

.proof-quote {
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-style: italic;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem;
  border-left: 3px solid var(--accent);
}


/* ═══════════════════════════════════════════════════════════════
   TECH STACK
   ═══════════════════════════════════════════════════════════════ */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-bottom: 2rem;
}

.stack-group {
  padding: 1.5rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
}
.stack-group:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.stack-group h3 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.stack-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.stack-item {
  display: inline-flex;
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.stack-item:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.stack-footnote {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
  max-width: 600px;
  margin: 0 auto;
}


/* ═══════════════════════════════════════════════════════════════
   WHO WE WORK WITH – with segment icons
   ═══════════════════════════════════════════════════════════════ */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 2rem;
}

.client-segment {
  padding: 2rem;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background-color: var(--bg-elevated);
  transition: all var(--transition-slow);
}
.client-segment:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
}

.segment-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}
.client-segment:hover .segment-icon {
  color: var(--accent);
}

.client-segment h3 {
  margin-bottom: 0.75rem;
}
.client-segment p {
  color: var(--text-secondary);
  font-size: 0.93rem;
}

.clients-qualifier {
  text-align: center;
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.93rem;
  max-width: 500px;
  margin: 0 auto;
}


/* ═══════════════════════════════════════════════════════════════
   FAQS
   ═══════════════════════════════════════════════════════════════ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-subtle);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 1.05rem;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-muted);
  flex-shrink: 0;
  margin-left: 1rem;
  transition: transform var(--transition-normal);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item summary:hover {
  color: var(--accent);
}

.faq-item p {
  padding: 0 0 1.25rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 600px;
  animation: faq-expand 0.3s ease;
}

@keyframes faq-expand {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ═══════════════════════════════════════════════════════════════
   FINAL CTA
   ═══════════════════════════════════════════════════════════════ */
.section-cta {
  background-color: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}

/* Radial accent glow */
.section-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, color-mix(in srgb, var(--accent) 8%, transparent) 0%, transparent 70%);
  pointer-events: none;
  animation: cta-pulse 4s ease-in-out infinite;
}

@keyframes cta-pulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 3rem 0;
}

.cta-copy {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-top: 1rem;
  margin-bottom: 2.5rem;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-note {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2rem;
}


/* ═══════════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════════ */
#site-footer {
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
}

.footer-tagline-col {
  max-width: 250px;
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1.3;
  color: var(--text-primary);
}

.footer-brand {
  text-align: center;
}

.footer-brand .logo-img {
  height: 96px; /* Increased logo size */
  width: auto;
}

.footer-links {
  display: flex;
  gap: 4rem;
  justify-content: flex-end;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.5rem;
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.8rem;
}


/* ═══════════════════════════════════════════════════════════════
   STICKY MOBILE CTA
   ═══════════════════════════════════════════════════════════════ */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 998;
  padding: 12px var(--container-px);
  background-color: color-mix(in srgb, var(--bg-primary) 90%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
}
.sticky-cta .btn {
  width: 100%;
  text-align: center;
}
.sticky-cta .btn:hover {
  box-shadow: 0 -4px 20px rgba(37, 99, 235, 0.2);
}


/* ═══════════════════════════════════════════════════════════════
   SCROLL REVEAL ANIMATIONS (Enhanced)
   ═══════════════════════════════════════════════════════════════ */
.reveal-item {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal-item.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.services-grid .reveal-item:nth-child(1) { transition-delay: 0ms; }
.services-grid .reveal-item:nth-child(2) { transition-delay: 80ms; }
.services-grid .reveal-item:nth-child(3) { transition-delay: 160ms; }
.services-grid .reveal-item:nth-child(4) { transition-delay: 240ms; }
.services-grid .reveal-item:nth-child(5) { transition-delay: 320ms; }
.services-grid .reveal-item:nth-child(6) { transition-delay: 400ms; }

.case-studies-grid .reveal-item:nth-child(1) { transition-delay: 0ms; }
.case-studies-grid .reveal-item:nth-child(2) { transition-delay: 100ms; }
.case-studies-grid .reveal-item:nth-child(3) { transition-delay: 200ms; }
.case-studies-grid .reveal-item:nth-child(4) { transition-delay: 300ms; }

.clients-grid .reveal-item:nth-child(1) { transition-delay: 0ms; }
.clients-grid .reveal-item:nth-child(2) { transition-delay: 100ms; }
.clients-grid .reveal-item:nth-child(3) { transition-delay: 200ms; }

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-image-wrapper {
    animation: none;
  }
  .hero-badge {
    animation: none;
  }
  .section-cta::before {
    animation: none;
  }
}


/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE – TABLET
   ═══════════════════════════════════════════════════════════════ */
/* Service Detail Hero */
.service-detail-hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
    order: 1;
  }
  .hero-visual {
    order: 0;
  }
  .hero-image-wrapper {
    max-width: 360px;
  }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-detail-hero {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    text-align: center;
  }

  .case-studies-grid {
    grid-template-columns: 1fr;
  }

  .clients-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2.5rem;
  }
  .footer-brand {
    order: 1;
  }
  .footer-brand .logo-img {
    height: 72px; /* Scale down slightly for mobile, still big */
  }
  .footer-tagline-col {
    order: 2;
    max-width: 100%;
  }
  .footer-tagline {
    font-size: 1.5rem; /* Slightly smaller for mobile */
    text-align: center;
  }
  .footer-links {
    order: 3;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2.5rem;
    width: 100%;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE – MOBILE
   ═══════════════════════════════════════════════════════════════ */
@media (max-width: 640px) {
  #main-nav { display: none; }
  #mobile-menu-toggle { display: flex; }
  .header-cta { display: none; }
  .sticky-cta { display: block; }

  .hero-section {
    min-height: auto;
  }

  .hero-ctas {
    flex-direction: column;
  }
  .hero-ctas .btn {
    width: 100%;
  }

  .hero-image-wrapper {
    max-width: 280px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-illustration {
    height: 140px;
  }

  .solution-block {
    flex-direction: column-reverse;
    gap: 0.5rem;
  }
  .solution-number {
    font-size: 2.5rem;
  }

  .timeline {
    padding-left: 50px;
  }
  .step-number {
    left: -50px;
    width: 40px;
    height: 40px;
  }
  .step-number svg {
    width: 18px;
    height: 18px;
  }

  .case-studies-grid {
    grid-template-columns: 1fr;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  .cta-buttons .btn { width: 100%; }

  .stack-grid {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════════════════════════════
   WHATSAPP FLOAT
   ═══════════════════════════════════════════════════════════════ */
.whatsapp-float {
  position: fixed;
  width: 56px;
  height: 56px;
  bottom: 24px;
  right: 24px;
  background-color: #25d366;
  color: #fff;
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  box-shadow: 0px 4px 12px rgba(0,0,0,0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}
.whatsapp-float:hover {
  transform: scale(1.1);
}
@media (max-width: 768px) {
  .whatsapp-float {
    width: 48px;
    height: 48px;
    bottom: 20px;
    right: 20px;
  }
  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}