/* Quantana US - AI-Native Insurance Back Office Stylesheet */

:root {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-surface-card: #ffffff;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-text-main: #0f172a;
  --color-text-muted: #334155;
  --color-text-subtle: #475569;
  --color-primary: #1e3a8a;
  --color-primary-hover: #1e40af;
  --color-primary-light: #eff6ff;
  --color-accent: #0284c7;
  --color-accent-subtle: #e0f2fe;
  --color-success: #059669;
  --color-success-bg: #ecfdf5;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-warning-text: #92400e;
  --color-danger-bg: #fef2f2;
  --color-danger-text: #991b1b;
  --color-code-bg: #0f172a;
  --color-code-text: #e2e8f0;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --container-max: 1200px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0b1120;
    --color-surface: #0f172a;
    --color-surface-subtle: #1e293b;
    --color-surface-card: #131d35;
    --color-border: #1e293b;
    --color-border-hover: #334155;
    --color-text-main: #f8fafc;
    --color-text-muted: #cbd5e1;
    --color-text-subtle: #94a3b8;
    --color-primary: #3b82f6;
    --color-primary-hover: #60a5fa;
    --color-primary-light: #172554;
    --color-accent: #38bdf8;
    --color-accent-subtle: #082f49;
    --color-success: #10b981;
    --color-success-bg: #064e3b;
    --color-warning-bg: #451a03;
    --color-warning-border: #78350f;
    --color-warning-text: #fde68a;
    --color-danger-bg: #450a0a;
    --color-danger-text: #fecaca;
    --color-code-bg: #030712;
    --color-code-text: #e2e8f0;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
  }
}

[data-theme="dark"] {
  --color-bg: #0b1120;
  --color-surface: #0f172a;
  --color-surface-subtle: #1e293b;
  --color-surface-card: #131d35;
  --color-border: #1e293b;
  --color-border-hover: #334155;
  --color-text-main: #f8fafc;
  --color-text-muted: #cbd5e1;
  --color-text-subtle: #94a3b8;
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-primary-light: #172554;
  --color-accent: #38bdf8;
  --color-accent-subtle: #082f49;
  --color-success: #10b981;
  --color-success-bg: #064e3b;
  --color-warning-bg: #451a03;
  --color-warning-border: #78350f;
  --color-warning-text: #fde68a;
  --color-danger-bg: #450a0a;
  --color-danger-text: #fecaca;
  --color-code-bg: #030712;
  --color-code-text: #e2e8f0;
}

[data-theme="light"] {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-subtle: #f1f5f9;
  --color-surface-card: #ffffff;
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;
  --color-text-main: #0f172a;
  --color-text-muted: #334155;
  --color-text-subtle: #475569;
  --color-primary: #1e3a8a;
  --color-primary-hover: #1e40af;
  --color-primary-light: #eff6ff;
  --color-accent: #0284c7;
  --color-accent-subtle: #e0f2fe;
  --color-success: #059669;
  --color-success-bg: #ecfdf5;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fde68a;
  --color-warning-text: #92400e;
  --color-danger-bg: #fef2f2;
  --color-danger-text: #991b1b;
  --color-code-bg: #0f172a;
  --color-code-text: #e2e8f0;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Accessibility / Focus */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  padding: 10px 16px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 9999;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 12px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-main);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.1rem; }

p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

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

a:hover {
  color: var(--color-accent);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 4.5rem 0;
}

.section-subtle {
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3rem auto;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.lead-text {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1;
}

.badge-blue {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border: 1px solid rgba(2, 132, 199, 0.25);
}

.badge-green {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
}

/* Notice Banner */
.notice-bar {
  background: var(--color-surface-subtle);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
  padding: 0.45rem 1.5rem;
  text-align: center;
  color: var(--color-text-muted);
}

.notice-bar strong {
  color: var(--color-text-main);
}

.notice-bar a {
  margin-left: 0.5rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: underline;
}

.notice-bar a:hover {
  color: var(--color-accent);
}

/* Header & Nav - Clean Single-Line Desktop Layout */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-normal);
}

[data-theme="dark"] .site-header {
  background-color: rgba(15, 23, 42, 0.96);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-header {
    background-color: rgba(15, 23, 42, 0.96);
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.25rem;
  gap: 1.25rem;
}

/* Brand - No overlap */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, #1e3a8a, #0284c7);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 1.15rem;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1;
}

.brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  line-height: 1.15;
  white-space: nowrap;
}

.brand-tagline {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  white-space: nowrap;
  margin-top: 2px;
}

/* Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.1rem;
  flex-wrap: nowrap;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-accent);
}

[data-theme="dark"] .nav-link { color: #e2e8f0; }
[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active { color: #38bdf8; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .nav-link {
    color: #e2e8f0;
  }
  :root:not([data-theme="light"]) .nav-link:hover,
  :root:not([data-theme="light"]) .nav-link.active {
    color: #38bdf8;
  }
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.theme-toggle-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-main);
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: var(--color-surface-subtle);
  border-color: var(--color-border-hover);
}

.mobile-menu-toggle {
  display: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.45rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-main);
  font-size: 1.25rem;
  line-height: 1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.925rem;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff !important;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text-main) !important;
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-subtle);
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.btn-sm {
  font-size: 0.85rem;
  padding: 0.45rem 0.9rem;
}

.btn-lg {
  font-size: 1.05rem;
  padding: 0.85rem 1.65rem;
}

/* Hero Section */
.hero-section {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-pill {
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: 3.25rem;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--color-text-main);
}

.hero-highlight {
  background: linear-gradient(120deg, #1e3a8a 0%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .hero-highlight {
    background: linear-gradient(120deg, #60a5fa 0%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-highlight {
    background: linear-gradient(120deg, #60a5fa 0%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  margin-bottom: 1.75rem;
}

.hero-promise {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-main);
  background: var(--color-surface-subtle);
  border-left: 3px solid var(--color-accent);
  padding: 0.75rem 1.25rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-credentials {
  display: flex;
  gap: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.cred-item {
  display: flex;
  flex-direction: column;
}

.cred-number {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-main);
}

.cred-label {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

/* Hero Visual / System Card */
.hero-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}

.card-header-mockup {
  background: var(--color-surface-subtle);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-subtle);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
}

.mockup-body {
  padding: 1.5rem;
}

.workflow-step {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  align-items: flex-start;
}

.workflow-step:last-child {
  margin-bottom: 0;
}

.step-badge {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.step-content {
  flex-grow: 1;
}

.step-title {
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.step-desc {
  font-size: 0.825rem;
  color: var(--color-text-muted);
}

.workflow-highlight-box {
  margin-top: 1.25rem;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-text-main);
}

/* Pain Points Section */
.pains-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.pain-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.pain-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-hover);
}

.pain-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.pain-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.pain-impact {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-danger-text);
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--color-border);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.75rem;
}

.service-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-num {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.service-features {
  list-style: none;
  margin: 1.25rem 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex-grow: 1;
}

.service-features li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.service-features li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: bold;
}

.service-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.service-link:hover {
  text-decoration: underline;
}

/* Parallel Run / How it Works */
.how-it-works-box {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-md);
}

.steps-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
  margin: 2.5rem 0 2rem;
}

.step-flow-card {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  position: relative;
}

.step-flow-number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.step-flow-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text-main);
}

.step-flow-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.human-approval-callout {
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.callout-icon {
  font-size: 1.5rem;
  color: var(--color-accent);
}

.callout-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
}

/* Who It's For */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.audience-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.audience-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.audience-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.audience-benefits {
  list-style: none;
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.audience-benefits li {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  gap: 0.5rem;
}

.audience-benefits li::before {
  content: "•";
  color: var(--color-accent);
  font-weight: bold;
}

/* Calculator Section */
.calc-wrapper {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.calc-display-val {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
}

.calc-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--color-surface-subtle);
  outline: none;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.calc-input-subtext {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

.calc-results {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-metric-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
}

.calc-metric-row:last-of-type {
  border-bottom: none;
}

.calc-metric-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.calc-metric-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.calc-saving-highlight {
  margin-top: 1.25rem;
  background: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
}

.calc-saving-title {
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-success);
  margin-bottom: 0.25rem;
}

.calc-saving-amount {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-success);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.calc-disclaimer {
  font-size: 0.775rem;
  color: var(--color-text-subtle);
  line-height: 1.4;
  margin-top: 1.25rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--color-border);
}

/* AI-Native / MCP Endpoint Section */
.ai-agent-section {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  border-radius: var(--radius-lg);
  padding: 3rem;
  margin: 3rem 0;
}

.ai-agent-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Pretty-printed MCP block */
pre.ai-code-block {
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre;
  overflow-x: auto;
  color: #38bdf8;
  display: block;
}

.code-comment { color: #94a3b8; }
.code-keyword { color: #f472b6; }
.code-string { color: #4ade80; }

/* FAQ Section */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

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

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-icon {
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
  color: var(--color-accent);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  display: block;
}

/* About / Credibility Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.stat-box {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.stat-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  margin-bottom: 0.25rem;
}

.stat-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.case-study-slot {
  background: var(--color-surface-subtle);
  border: 2px dashed var(--color-border-hover);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  margin-top: 1.5rem;
}

.case-study-slot p {
  font-size: 0.875rem;
  color: var(--color-text-subtle);
  font-style: italic;
}

/* Contact / CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #1e3a8a 0%, #0f172a 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  text-align: center;
  box-shadow: var(--shadow-xl);
}

.cta-banner h2 {
  color: #ffffff;
  font-size: 2.35rem;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: #cbd5e1;
  font-size: 1.15rem;
  max-width: 680px;
  margin: 0 auto 2rem auto;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-white {
  background: #ffffff;
  color: #0f172a !important;
}

.btn-white:hover {
  background: #f1f5f9;
  transform: translateY(-1px);
}

.btn-outline-white {
  background: transparent;
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

/* Contact Form Card */
.contact-section-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  max-width: 640px;
  margin: 2.5rem auto 0;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-main);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  outline: none;
}

.form-help {
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

.form-status {
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
  display: none;
  font-size: 0.9rem;
}

.form-status.success {
  display: block;
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form-status.error {
  display: block;
  background: var(--color-danger-bg);
  color: var(--color-danger-text);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Footer */
.site-footer {
  background-color: var(--color-surface-subtle);
  border-top: 1px solid var(--color-border);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-main);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer-legal {
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--color-text-subtle);
}

.compliance-notice {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  line-height: 1.5;
}

.footer-bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Sub-page Stubs Styling */
.stub-header {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.stub-body {
  padding: 3.5rem 0;
}

.stub-card {
  background: var(--color-surface-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  margin-bottom: 2rem;
}

.stub-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.outline-box {
  background: var(--color-surface-subtle);
  border-left: 4px solid var(--color-primary);
  padding: 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

.outline-box h4 {
  margin-bottom: 0.75rem;
  color: var(--color-text-main);
}

.outline-box ul {
  padding-left: 1.25rem;
  color: var(--color-text-muted);
}

.outline-box li {
  margin-bottom: 0.4rem;
}

/* Responsive Styles: Switch clean hamburger menu at 1024px */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-links.open {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: block;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .calc-wrapper {
    grid-template-columns: 1fr;
  }
  
  .steps-flow {
    grid-template-columns: 1fr 1fr;
  }
  
  .audience-grid {
    grid-template-columns: 1fr;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
  .section { padding: 3.5rem 0; }
  
  .steps-flow {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}