:root {
  /* AI Scanner Source of Truth Brand Colors */
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --primary-light: #EFF6FF;
  --primary-border: #BFDBFE;
  --primary-glow: rgba(37, 99, 235, 0.15);
  
  /* Neutral Slate Palette */
  --text: #0F172A;
  --secondary-text: #475569;
  --muted-text: #64748B;
  
  /* Surfaces */
  --background: #FFFFFF;
  --secondary-background: #F8FAFC;
  --hero-background: linear-gradient(180deg, #F0F7FF 0%, #F8FAFC 100%);
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  
  /* Elevative Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
  --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
  --shadow-hero: 0 20px 35px -10px rgba(37, 99, 235, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.04);

  /* Spacing & Layout */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --nav-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.container {
  width: min(1160px, calc(100% - 2.5rem));
  margin: 0 auto;
}

/* ==========================================================================
   STICKY NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.95);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height);
  padding: 0.5rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: opacity 0.2s ease;
}

.brand:hover {
  opacity: 0.9;
}

.brand-icon-wrapper {
  width: 36px;
  height: 36px;
  flex: 0 0 36px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.app-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.app-icon-fallback {
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  width: 100%;
  height: 100%;
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-sm);
}

.brand-text {
  font-weight: 700;
  color: var(--text);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--secondary-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.25rem;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem;
  cursor: pointer;
  width: 42px;
  height: 42px;
  transition: background-color 0.2s ease;
}

.menu-toggle:hover {
  background: var(--secondary-background);
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Menu Toggle Active State (X transformation) */
.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  padding: 5rem 0 5.5rem;
  background: var(--hero-background);
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

/* Left Column: Text & CTAs */
.hero-text-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.badge-icon {
  fill: currentColor;
}

.hero-headline {
  margin: 0 0 1.25rem;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--text);
}

.hero-subtitle {
  margin: 0 0 2.25rem;
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--secondary-text);
  max-width: 540px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-pill);
  font-size: 0.95rem;
  font-weight: 600;
  min-height: 48px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: #FFFFFF;
  border: 1px solid var(--primary);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
  background: var(--background);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--secondary-background);
  border-color: #CBD5E1;
  color: var(--text);
}

.btn-nav {
  padding: 0.55rem 1.15rem;
  min-height: 38px;
  font-size: 0.88rem;
  background: var(--primary);
  color: #FFFFFF;
  border: 1px solid var(--primary);
  border-radius: var(--radius-pill);
}

.btn-nav:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
}

.btn-icon {
  flex-shrink: 0;
}

.capability-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  color: var(--muted-text);
  font-size: 0.88rem;
  font-weight: 500;
}

.capability-item {
  color: var(--secondary-text);
}

.capability-dot {
  color: #94A3B8;
  font-size: 0.75rem;
}

/* Right Column: Hero Visual Graphic */
.hero-visual-col {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-composition {
  position: relative;
  width: 100%;
  max-width: 460px;
}

.ambient-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 115%;
  height: 115%;
  background: radial-gradient(circle, var(--primary-glow) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-graphic-card {
  position: relative;
  z-index: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--background);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hero);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-graphic-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.graphic-fallback-box {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
  width: 100%;
  aspect-ratio: 9 / 16;
  background: linear-gradient(145deg, #FFFFFF 0%, #F0F7FF 100%);
  gap: 1rem;
}

.fallback-badge {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-pill);
}

.fallback-desc {
  font-size: 0.85rem;
  color: var(--secondary-text);
}
/* ==========================================================================
   CORE FEATURES SECTION
   ========================================================================== */

.features-section {
  padding: 5.5rem 0;
  background: var(--background);
  border-bottom: 1px solid var(--border-light);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-title {
  margin: 0.75rem 0 1rem;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text);
}

.section-subtitle {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.6;
  color: var(--secondary-text);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}

.feature-card {
  position: relative;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow);
}

/* Subtle visual emphasis for Card #3 (AI Document Intelligence) */
.feature-card-featured {
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.06);
}

.feature-card-featured:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.12);
}

.card-header-badge {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
}

.ai-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-pill);
}

.card-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid var(--primary-border);
  flex-shrink: 0;
}

.card-icon-ai {
  background: rgba(37, 99, 235, 0.12);
  color: var(--primary-hover);
}

.card-title {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.card-desc {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--secondary-text);
  flex-grow: 1;
}

.card-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted-text);
  background: var(--secondary-background);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
}

.card-tag-ai {
  color: var(--primary);
  background: var(--primary-light);
  border-color: var(--primary-border);
}

/* ==========================================================================
   HOW IT WORKS SECTION
   ========================================================================== */

.how-it-works-section {
  padding: 5.5rem 0;
  background: linear-gradient(180deg, #F8FAFC 0%, #F0F7FF 100%);
  border-bottom: 1px solid var(--border-light);
  position: relative;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.workflow-card {
  position: relative;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.6rem 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  z-index: 1;
}

.workflow-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow);
}

.workflow-card-ai {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.workflow-card-ai:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.14);
}

.workflow-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 1.25rem;
}

.step-badge {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  letter-spacing: 0.04em;
}

.step-badge-ai {
  color: #FFFFFF;
  background: var(--primary);
  border-color: var(--primary);
}

.workflow-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--secondary-background);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
}

.workflow-icon-ai {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

.workflow-title {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.workflow-desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--secondary-text);
}

/* ==========================================================================
   AI TECHNOLOGY / DOCUMENT INTELLIGENCE PIPELINE SECTION (#AI-TECHNOLOGY)
   ========================================================================== */

#ai-technology {
  scroll-margin-top: calc(var(--nav-height) + 1.5rem);
}

.ai-tech-section {
  padding: 5.5rem 0;
  background: #F8FBFF;
  border-bottom: 1px solid var(--border-light);
}

/* 5-Stage Pipeline Grid */
.pipeline-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
  margin-bottom: 3.5rem;
  position: relative;
}

.pipeline-card {
  position: relative;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.pipeline-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow);
}

/* Featured Stage 04: Gemini AI */
.pipeline-card-featured {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.pipeline-card-featured:hover {
  border-color: var(--primary);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.14);
}

.pipeline-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 1.15rem;
}

.pipeline-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-border);
}

.pipeline-icon-ai {
  background: rgba(37, 99, 235, 0.14);
  color: var(--primary-hover);
}

.pipeline-step-badge {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--secondary-text);
  background: var(--secondary-background);
  border: 1px solid var(--border-light);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
}

.step-badge-ai {
  color: #FFFFFF;
  background: var(--primary);
  border-color: var(--primary);
}

.pipeline-title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.pipeline-desc {
  margin: 0 0 1.25rem;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--secondary-text);
  flex-grow: 1;
}

.tech-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.tech-tag-ai {
  color: var(--primary-hover);
  background: rgba(37, 99, 235, 0.12);
  border-color: var(--primary-border);
}

/* Secondary Two-Column Tech Cards */
.tech-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

.tech-card {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.tech-card-ai {
  background: linear-gradient(180deg, #FFFFFF 0%, #F0F7FF 100%);
  border-color: rgba(37, 99, 235, 0.3);
}

.tech-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1rem;
}

.tech-card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-border);
}

.tech-card-icon-ai {
  background: rgba(37, 99, 235, 0.14);
  color: var(--primary-hover);
}

.tech-card-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.tech-card-text {
  margin: 0 0 1.5rem;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--secondary-text);
  flex-grow: 1;
}

.tech-badges-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tech-pill {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--secondary-text);
  background: var(--secondary-background);
  border: 1px solid var(--border-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

.tech-pill-ai {
  color: var(--primary);
  background: var(--primary-light);
  border-color: var(--primary-border);
}

/* Architecture & Privacy Info Strip */
.arch-privacy-strip {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--background);
  border: 1px solid var(--primary-border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-sm);
}

.privacy-strip-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.privacy-strip-content {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.privacy-strip-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.privacy-strip-text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--secondary-text);
}

/* ==========================================================================
   PRODUCT SHOWCASE SECTION (#SCREENSHOTS)
   ========================================================================== */

.screenshots-section {
  padding: 5.5rem 0;
  background: var(--background);
  border-bottom: 1px solid var(--border-light);
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.showcase-card {
  position: relative;
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  cursor: pointer;
}

.showcase-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow);
}

.showcase-img-wrapper {
  position: relative;
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #F8FAFC;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  border: 1px solid var(--border-light);
}

.showcase-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.showcase-fallback-box {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1rem;
  text-align: center;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: linear-gradient(145deg, #FFFFFF 0%, #F8FAFC 100%);
  gap: 0.75rem;
}

.showcase-fallback-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.showcase-fallback-desc {
  font-size: 0.8rem;
  color: var(--secondary-text);
}

.showcase-label {
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--secondary-text);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
  margin-top: 1rem;
  color: #FFFFFF;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease;
  z-index: 2010;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   PRIVACY & LOCAL-FIRST TRUST SECTION (#PRIVACY)
   ========================================================================== */

.privacy-section {
  padding: 5.5rem 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
}

.privacy-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
  margin-bottom: 3rem;
}

.section-header-left {
  text-align: left;
  margin-bottom: 2rem;
}

.section-header-left .section-title {
  margin-left: 0;
  margin-right: 0;
}

.section-header-left .section-subtitle {
  margin-left: 0;
  margin-right: 0;
}

.trust-items-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
}

.trust-icon-box {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primary-border);
  flex-shrink: 0;
}

.trust-icon-ai {
  background: rgba(37, 99, 235, 0.14);
  color: var(--primary-hover);
}

.trust-item-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.trust-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.trust-desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--secondary-text);
}

/* Privacy Architecture Diagram (Right Column) */
.arch-diagram-wrapper {
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: var(--shadow-sm);
}

.device-boundary-box {
  width: 100%;
  background: #FFFFFF;
  border: 2px dashed var(--primary-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.8);
}

.boundary-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  color: var(--primary);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.device-process-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.flow-node {
  width: 100%;
  max-width: 260px;
  background: #F1F5F9;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.85rem;
  text-align: center;
  transition: background 0.2s ease;
}

.flow-node-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}

.flow-node-text {
  background: var(--primary-light);
  border-color: var(--primary-border);
}

.flow-node-text .flow-node-title {
  color: var(--primary);
}

.flow-arrow {
  color: var(--muted-text);
  font-size: 0.85rem;
  line-height: 1;
}

.connector-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin: 1rem 0;
  gap: 0.5rem;
}

.connector-line {
  flex-grow: 1;
  height: 1px;
  border-top: 1px dashed var(--primary-border);
}

.connector-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-border);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
}

.external-ai-box {
  width: 100%;
  max-width: 280px;
  background: linear-gradient(145deg, #FFFFFF 0%, #F0F7FF 100%);
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.08);
}

.external-ai-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.external-ai-text {
  display: flex;
  flex-direction: column;
}

.external-ai-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text);
}

.external-ai-sub {
  font-size: 0.75rem;
  color: var(--secondary-text);
}

/* Trust Callout Bar */
.trust-callout-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.75rem;
  gap: 1rem;
}

.callout-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.callout-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

.trust-link {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
  transition: color 0.2s ease;
}

.trust-link:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* ==========================================================================
   DOWNLOAD & FINAL CTA SECTION (#DOWNLOAD)
   ========================================================================== */

#download {
  scroll-margin-top: calc(var(--nav-height) + 1.5rem);
}

.download-section {
  padding: 5.5rem 0 6rem;
  background: #F8FBFF;
  border-bottom: 1px solid var(--border-light);
}

/* Part 1: Marketing Banner Card */
.banner-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--background);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 4rem;
  display: flex;
  justify-content: center;
  align-items: center;
}

.banner-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.banner-fallback-box {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  width: 100%;
  aspect-ratio: 21 / 9;
  background: linear-gradient(145deg, #FFFFFF 0%, #F0F7FF 100%);
  gap: 0.75rem;
}

.banner-fallback-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.banner-fallback-desc {
  font-size: 0.85rem;
  color: var(--secondary-text);
}

/* Part 2: Final CTA Panel */
.cta-panel {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta-panel .section-header {
  margin-bottom: 2rem;
}

.value-points-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.value-point {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.value-point svg {
  color: var(--primary);
  flex-shrink: 0;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.btn-cta-main {
  cursor: default;
}

.release-note {
  font-size: 0.85rem;
  color: var(--muted-text);
  font-weight: 500;
}

/* ==========================================================================
   CARD & ARTICLE STYLING (FOR PRIVACY & TERMS LEGAL PAGES)
   ========================================================================== */

.page-hero {
  padding: 4rem 0 2.5rem;
  background: var(--hero-background);
  border-bottom: 1px solid var(--border);
}

.page-subtitle {
  margin-top: 0.5rem;
  color: var(--secondary-text);
  font-size: 1.1rem;
}

.card {
  background: var(--background);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 2.5rem;
  margin: 3rem auto 4rem;
  max-width: 840px;
}

.card article > * + * {
  margin-top: 1rem;
}

.card h1,
.card h2,
.card h3 {
  color: var(--text);
  line-height: 1.25;
  margin: 0;
}

.card h1 {
  font-size: 1.8rem;
  letter-spacing: -0.02em;
}

.card h2 {
  font-size: 1.25rem;
  margin-top: 1.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-light);
}

.card h3 {
  font-size: 1.05rem;
  margin-top: 1.25rem;
}

.card p,
.card li,
.card blockquote {
  font-size: 1rem;
  color: var(--secondary-text);
}

.card ul,
.card ol {
  padding-left: 1.25rem;
  margin: 0;
}

.card blockquote {
  border-left: 3px solid var(--primary);
  padding: 0.5rem 0 0.5rem 1rem;
  margin: 1rem 0;
  background: var(--primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--secondary-background);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
}

.site-footer h2,
.site-footer h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.site-footer p,
.site-footer li,
.site-footer a {
  color: var(--secondary-text);
  font-size: 0.95rem;
}

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

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.footer-bottom {
  padding-top: 1.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted-text);
}

/* ==========================================================================
   RESPONSIVE DESIGN & MEDIA QUERIES
   ========================================================================== */

@media (max-width: 1023px) {
  .features-grid,
  .workflow-grid,
  .showcase-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }

  .pipeline-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
  }
}

@media (max-width: 991px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-text-col {
    align-items: center;
  }

  .hero-subtitle {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .capability-row {
    justify-content: center;
  }

  .hero-visual-col {
    order: 2;
  }

  .privacy-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section-header-left {
    text-align: center;
  }

  .section-header-left .section-title,
  .section-header-left .section-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-menu {
    position: absolute;
    top: var(--nav-height);
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    background: #FFFFFF;
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    gap: 1.25rem;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    width: 100%;
  }

  .nav-links a {
    width: 100%;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 1rem;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-cta-wrapper {
    width: 100%;
    padding-top: 0.25rem;
  }

  .btn-nav {
    width: 100%;
    justify-content: center;
    min-height: 44px;
  }

  .hero-section {
    padding: 3.5rem 0 4rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .tech-cards-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

@media (max-width: 639px) {
  .features-grid,
  .workflow-grid,
  .showcase-grid,
  .pipeline-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .features-section,
  .how-it-works-section,
  .screenshots-section,
  .ai-tech-section,
  .privacy-section,
  .download-section {
    padding: 3.5rem 0;
  }

  .banner-card {
    margin-bottom: 2.5rem;
  }

  .cta-panel {
    padding: 2.25rem 1.25rem;
  }

  .value-points-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    text-align: left;
  }

  .arch-privacy-strip {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.25rem;
  }

  .trust-callout-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
  }
}

@media (max-width: 480px) {
  .brand-icon-wrapper {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .value-points-row {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 1.5rem;
    border-radius: var(--radius-md);
  }

  .capability-row {
    font-size: 0.82rem;
    gap: 0.4rem;
  }
}

/* ==========================================================================
   ACCESSIBILITY & PREFERS-REDUCED-MOTION
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.showcase-card:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-color: var(--primary);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}