/* ============================================================
   bizOS Marketing Site — Global Styles
   Brand: bizOS — Business Operating System
   Colors from Brand Guidelines
   Inspired by Toast / Heartland modern SaaS aesthetics
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Brand Colors */
  --color-primary-navy: #00204a;
  --color-deep-navy: #000a17;
  --color-medium-blue: #00367d;
  --color-light-cyan: #d9faff;
  --color-sky-blue: #a6f3ff;
  --color-white: #ffffff;

  /* Extended Palette */
  --color-cyan-400: #22d3ee;
  --color-cyan-500: #06b6d4;
  --color-blue-400: #60a5fa;
  --color-indigo-500: #6366f1;

  /* Functional Colors */
  --color-text: #1a1a2e;
  --color-text-light: #4a5568;
  --color-text-muted: #718096;
  --color-border: #e2e8f0;
  --color-bg-light: #f7fafc;
  --color-bg-alt: #f0f9ff;
  --color-success: #38a169;
  --color-error: #e53e3e;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 72px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-smooth: 400ms cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Focus */
  --focus-ring: 0 0 0 3px rgba(0, 54, 125, 0.4);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 40px rgba(0, 32, 74, 0.1);
  --shadow-xl: 0 20px 60px rgba(0, 32, 74, 0.15);
  --shadow-glow: 0 0 40px rgba(166, 243, 255, 0.15);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-medium-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-navy);
}

/* --- Focus Styles (ADA) --- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-medium-blue);
  outline-offset: 2px;
}

/* --- Skip Navigation (ADA) --- */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary-navy);
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 8px 8px;
  z-index: 10000;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-nav:focus {
  top: 0;
  outline: 3px solid var(--color-sky-blue);
  outline-offset: 2px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-primary-navy);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

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

.section--navy {
  background: var(--color-primary-navy);
  color: var(--color-white);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--color-white);
}

.section--navy p {
  color: rgba(255, 255, 255, 0.85);
}

.section--deep {
  background: var(--color-deep-navy);
  color: var(--color-white);
}

.section--deep h2,
.section--deep h3 {
  color: var(--color-white);
}

.section--deep p {
  color: rgba(255, 255, 255, 0.85);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.section-header p {
  margin-top: var(--space-md);
  font-size: 1.125rem;
}

/* Section logo in headings */
.section-header h2 .section-logo {
  display: block;
  margin: 0 auto var(--space-sm);
  height: 125px;
  width: auto;
}

.section-header h2 span {
  display: block;
}

/* Eyebrow / Badge */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(166, 243, 255, 0.12);
  border: 1px solid rgba(166, 243, 255, 0.25);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-sky-blue);
  margin-bottom: var(--space-lg);
}

.eyebrow--dark {
  background: rgba(0, 54, 125, 0.08);
  border-color: rgba(0, 54, 125, 0.15);
  color: var(--color-medium-blue);
}

/* --- Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(0, 32, 74, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: var(--nav-height);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(0, 10, 23, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.nav-logo:hover {
  color: var(--color-sky-blue);
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.875rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link[aria-expanded="true"] {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.nav-link .chevron {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-fast);
}

.nav-link[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 260px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.05);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  list-style: none;
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown,
.nav-dropdown.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 10px;
  transition: background var(--transition-fast);
}

.nav-dropdown a:hover,
.nav-dropdown a:focus {
  background: var(--color-bg-alt);
  color: var(--color-medium-blue);
}

.nav-dropdown a small {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-actions .btn--ghost {
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.25);
}

.nav-actions .btn--ghost:hover {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.08);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-white);
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
}

.nav-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav-toggle[aria-expanded="false"] .icon-close,
.nav-toggle:not([aria-expanded]) .icon-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  border-radius: 10px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
}

.btn--primary {
  background: var(--color-medium-blue);
  color: var(--color-white);
  border-color: var(--color-medium-blue);
}

.btn--primary:hover {
  background: var(--color-primary-navy);
  border-color: var(--color-primary-navy);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0, 54, 125, 0.3);
}

.btn--secondary {
  background: var(--color-white);
  color: var(--color-primary-navy);
  border-color: var(--color-primary-navy);
}

.btn--secondary:hover {
  background: var(--color-primary-navy);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary-navy);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-primary-navy);
}

.btn--cyan {
  background: linear-gradient(135deg, var(--color-sky-blue) 0%, var(--color-cyan-400) 100%);
  color: var(--color-deep-navy);
  border-color: transparent;
  font-weight: 700;
}

.btn--cyan:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(166, 243, 255, 0.35);
  filter: brightness(1.05);
}

.btn--outline-light {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(10px);
}

.btn--outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: 1.0625rem;
  border-radius: 12px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-5xl)) 0 var(--space-5xl);
  background: var(--color-deep-navy);
  color: var(--color-white);
  text-align: center;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

/* Animated gradient background */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 54, 125, 0.6) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 80% 60%, rgba(6, 182, 212, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 20% 70%, rgba(99, 102, 241, 0.12) 0%, transparent 60%);
  animation: heroGradient 12s ease-in-out infinite alternate;
}

@keyframes heroGradient {
  0% { opacity: 1; }
  50% { opacity: 0.8; }
  100% { opacity: 1; }
}

/* Grid pattern overlay */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
}

.hero > .container {
  position: relative;
  z-index: 2;
}

/* Floating geometric shapes */
.hero-shapes {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.08;
  filter: blur(1px);
}

.hero-shape--1 {
  width: 400px;
  height: 400px;
  background: var(--color-sky-blue);
  top: -10%;
  right: -5%;
  animation: floatShape 20s ease-in-out infinite;
}

.hero-shape--2 {
  width: 250px;
  height: 250px;
  background: var(--color-cyan-400);
  bottom: -5%;
  left: -3%;
  animation: floatShape 16s ease-in-out infinite reverse;
}

.hero-shape--3 {
  width: 150px;
  height: 150px;
  background: var(--color-indigo-500);
  top: 30%;
  left: 10%;
  animation: floatShape 14s ease-in-out infinite 2s;
}

.hero-shape--4 {
  width: 100px;
  height: 100px;
  background: var(--color-sky-blue);
  bottom: 20%;
  right: 15%;
  border-radius: 30%;
  animation: floatShape 18s ease-in-out infinite 1s;
  transform: rotate(45deg);
}

@keyframes floatShape {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-20px) rotate(5deg); }
  66% { transform: translateY(10px) rotate(-3deg); }
}

/* Hero logo */
.hero__logo {
  display: block;
  margin: 0 auto var(--space-xl);
  height: 120px;
  width: auto;
  animation: fadeInDown 0.8s ease both;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero p {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero .btn-group {
  justify-content: center;
  animation: fadeInUp 0.8s ease 0.6s both;
}

/* Hero with extra padding for product pages */
.hero--product {
  padding-bottom: var(--space-4xl);
  min-height: auto;
}

/* Gradient text utility */
.text-gradient {
  background: linear-gradient(135deg, var(--color-sky-blue) 0%, var(--color-cyan-400) 50%, var(--color-blue-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Stats Bar --- */
.stats-bar {
  position: relative;
  padding: var(--space-3xl) 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  padding: var(--space-md);
}

.stat-number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--color-primary-navy);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
}

.stat-number .stat-suffix {
  font-size: 0.65em;
  color: var(--color-cyan-500);
  font-weight: 700;
}

.stat-label {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-children.is-visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-children.is-visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

/* --- Section Divider (angled) --- */
.section-divider {
  position: relative;
}

.section-divider::before {
  content: "";
  position: absolute;
  top: -3rem;
  left: 0;
  right: 0;
  height: 6rem;
  background: inherit;
  clip-path: polygon(0 50%, 100% 0, 100% 100%, 0 100%);
  z-index: 1;
}

/* --- Cards --- */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.card-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card-grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--color-white);
  border-radius: 16px;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 17px;
  background: linear-gradient(135deg, var(--color-sky-blue), var(--color-cyan-400), var(--color-medium-blue));
  opacity: 0;
  transition: opacity var(--transition-smooth);
  z-index: -1;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  background: var(--color-bg-alt);
  color: var(--color-medium-blue);
  font-size: 1.5rem;
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: 0.9375rem;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: var(--space-md);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-medium-blue);
  transition: all var(--transition-fast);
}

.card__link:hover {
  gap: 0.625rem;
  color: var(--color-primary-navy);
}

/* Product card */
.product-card {
  padding: var(--space-2xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.product-card .card__tagline {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-medium-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

/* Centered icon variant */
.card__icon--centered {
  margin-left: auto;
  margin-right: auto;
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-light-cyan), var(--color-sky-blue));
  color: var(--color-primary-navy);
  box-shadow: 0 4px 15px rgba(166, 243, 255, 0.3);
}

/* Logo + product name lockup */
.card__logo-name {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 0;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.product-card .card__body {
  flex: 1;
  margin-top: var(--space-lg);
}

.product-card .card__link {
  margin-top: auto;
  padding-top: var(--space-md);
}

/* Bullet list inside product cards */
.card__list {
  list-style: none;
  padding: 0;
  text-align: left;
}

.card__list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.625rem;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-sky-blue), var(--color-cyan-400));
  box-shadow: 0 0 6px rgba(166, 243, 255, 0.4);
}

.card__list li:last-child {
  margin-bottom: 0;
}

.card__logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary-navy);
  line-height: 1.1;
}

.card__product-name {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-medium-blue);
  line-height: 1.2;
}

/* --- Feature Sections (alternating layout) --- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding: var(--space-3xl) 0;
}

.feature-row:not(:last-child) {
  border-bottom: 1px solid var(--color-border);
}

.feature-row--reverse .feature-content {
  order: 2;
}

.feature-content h3 {
  margin-bottom: var(--space-md);
}

.feature-content p {
  font-size: 1rem;
}

.feature-visual {
  background: var(--color-bg-alt);
  border-radius: 16px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-medium-blue);
  font-size: 3rem;
}

/* Feature list (stacked without visual) */
.feature-stack {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.feature-stack:last-child {
  border-bottom: none;
}

.feature-stack h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.feature-stack .feature-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-medium-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

/* --- Steps / How It Works --- */
.steps {
  display: grid;
  gap: var(--space-xl);
  counter-reset: steps;
}

.steps--horizontal {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.step {
  position: relative;
  padding-left: 3.5rem;
  counter-increment: steps;
}

.step::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--color-medium-blue);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.steps--horizontal .step {
  padding-left: 0;
  padding-top: 3.5rem;
  text-align: center;
}

.steps--horizontal .step::before {
  left: 50%;
  transform: translateX(-50%);
}

.step h4 {
  margin-bottom: var(--space-xs);
}

.step p {
  font-size: 0.9375rem;
}

/* --- CTA Banner --- */
.cta-banner {
  position: relative;
  background: var(--color-deep-navy);
  color: var(--color-white);
  padding: var(--space-5xl) 0;
  text-align: center;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 30% 50%, rgba(0, 54, 125, 0.5) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 70% 60%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
  animation: heroGradient 10s ease-in-out infinite alternate;
}

.cta-banner > .container {
  position: relative;
  z-index: 2;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
}

/* --- Differentiators / Icon Grid --- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-xl);
}

.diff-item {
  padding: var(--space-xl);
  text-align: center;
  border-radius: 16px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
}

.diff-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(166, 243, 255, 0.3);
}

.diff-item h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
}

.diff-item p {
  font-size: 0.9375rem;
}

/* Bullet list inside diff cards */
.diff-list {
  list-style: none;
  padding: 0;
  text-align: left;
}

.diff-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.625rem;
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.diff-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-sky-blue), var(--color-cyan-400));
  box-shadow: 0 0 6px rgba(166, 243, 255, 0.4);
}

.diff-item__icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-bg-alt);
  color: var(--color-medium-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

/* --- Solutions Section --- */
.solutions-intro {
  font-size: 1.125rem;
  max-width: 700px;
}

/* --- Trust / Logos Bar --- */
.trust-bar {
  padding: var(--space-3xl) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-bar p {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
}

.trust-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xl);
  flex-wrap: wrap;
  opacity: 0.5;
}

/* --- Audience Segments --- */
.segment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
}

.segment {
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: 12px;
  border-left: 4px solid var(--color-medium-blue);
}

.segment h4 {
  margin-bottom: var(--space-xs);
  color: var(--color-primary-navy);
}

.segment p {
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* --- Forms --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-group .required {
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-medium-blue);
  outline: none;
  box-shadow: var(--focus-ring);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--color-error);
}

.form-error {
  color: var(--color-error);
  font-size: 0.8125rem;
  margin-top: var(--space-xs);
}

/* --- Contact Layout --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-sidebar {
  background: var(--color-bg-light);
  border-radius: 16px;
  padding: var(--space-xl);
}

.contact-sidebar p {
  font-size: 1rem;
  line-height: 1.7;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-deep-navy);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-5xl) 0 var(--space-xl);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(166, 243, 255, 0.2), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--space-md);
  max-width: 280px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-sky-blue);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.35);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
  color: var(--color-sky-blue);
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-white { color: var(--color-white); }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Agent Cards (Promo page) --- */
.agent-card {
  background: var(--color-white);
  border-radius: 16px;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-smooth);
}

.agent-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.agent-card__role {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-medium-blue);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-sm);
}

.agent-card h3 {
  margin-bottom: var(--space-sm);
}

.agent-card p {
  font-size: 0.9375rem;
}

/* --- Tech Stack (Platform page) --- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.tech-item h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

.tech-item p {
  font-size: 0.9375rem;
}

/* --- Values list (About page) --- */
.values-list {
  display: grid;
  gap: var(--space-xl);
}

.values-list .value-item {
  padding-left: var(--space-xl);
  border-left: 3px solid var(--color-medium-blue);
}

.values-list h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

/* --- Keyframe Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .feature-row--reverse .feature-content {
    order: unset;
  }

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
    --space-4xl: 3.5rem;
    --space-5xl: 5rem;
  }

  /* Mobile nav */
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 32, 74, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0.25rem;
    overflow-y: auto;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .nav-actions {
    display: none;
  }

  .nav-menu.is-open + .nav-actions,
  .nav-menu.is-open ~ .nav-actions {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem 1.5rem;
    background: var(--color-deep-navy);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    justify-content: stretch;
    z-index: 1001;
  }

  .nav-menu.is-open ~ .nav-actions .btn {
    flex: 1;
    text-align: center;
  }

  .nav-dropdown {
    position: static;
    transform: none;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: none;
    border-radius: 8px;
    margin-top: 0.25rem;
    display: none;
  }

  .nav-dropdown.is-open {
    display: block;
    opacity: 1;
    visibility: visible;
  }

  .nav-dropdown a {
    color: rgba(255, 255, 255, 0.8);
  }

  .nav-dropdown a:hover,
  .nav-dropdown a:focus {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-sky-blue);
  }

  .nav-dropdown a small {
    color: rgba(255, 255, 255, 0.5);
  }

  .hero {
    padding-top: calc(var(--nav-height) + var(--space-3xl));
    padding-bottom: var(--space-3xl);
    min-height: 80vh;
  }

  .hero__logo {
    height: 80px;
  }

  .hero-shape--1 { width: 200px; height: 200px; }
  .hero-shape--2 { width: 150px; height: 150px; }
  .hero-shape--3, .hero-shape--4 { display: none; }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }

  .card-grid--3,
  .card-grid--4 {
    grid-template-columns: 1fr;
  }

  .card-grid--2 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

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

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

  .steps--horizontal {
    grid-template-columns: 1fr;
  }

  .steps--horizontal .step {
    padding-top: 0;
    padding-left: 3.5rem;
    text-align: left;
  }

  .steps--horizontal .step::before {
    left: 0;
    transform: none;
  }

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

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .stat-number {
    font-size: 1.75rem;
  }
}

/* --- Print Styles --- */
@media print {
  .site-header,
  .nav-toggle,
  .skip-nav,
  .hero-shapes {
    display: none;
  }

  .hero {
    padding-top: var(--space-xl);
    background: none;
    color: var(--color-text);
    min-height: auto;
  }

  .hero h1,
  .section--navy h2,
  .section--deep h2 {
    color: var(--color-text);
  }

  .hero p,
  .section--navy p,
  .section--deep p {
    color: var(--color-text-light);
  }

  .fade-in,
  .fade-in-left,
  .fade-in-right,
  .stagger-children > * {
    opacity: 1 !important;
    transform: none !important;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 0.8em;
    color: var(--color-text-muted);
  }
}