/* ===========================================
   RAFTcorr Website — Complete Stylesheet
   Dark sci-fi theme, Apple/SAM2-quality aesthetic
   =========================================== */

/* ----- CSS Custom Properties ----- */
:root {
  --bg-primary: #0a0f1c;
  --bg-secondary: #1a2332;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --accent-blue: #4a9eff;
  --accent-teal: #00d4aa;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --glow-blue: rgba(74, 158, 255, 0.15);
  --glow-blue-strong: rgba(74, 158, 255, 0.3);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --footer-bg: #060a14;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 400ms ease;
  --container-max: 1200px;
  --container-padding: 24px;
}


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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
}

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

ul, ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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


/* ===========================================
   LAYOUT UTILITIES
   =========================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 120px 0;
  position: relative;
}


/* ===========================================
   SHARED SECTION TITLE STYLES
   =========================================== */
.section__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
  line-height: 1.7;
}


/* ===========================================
   GLASS-MORPHISM CARD BASE
   =========================================== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: background var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(74, 158, 255, 0.15);
  box-shadow: 0 0 40px var(--glow-blue);
}


/* ===========================================
   BUTTONS
   =========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
}

.btn:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--accent-blue);
  color: #ffffff;
  border: 1px solid var(--accent-blue);
  box-shadow: 0 4px 24px rgba(74, 158, 255, 0.25);
}

.btn--primary:hover {
  background: #3d8be5;
  border-color: #3d8be5;
  box-shadow: 0 6px 32px rgba(74, 158, 255, 0.35);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn--secondary:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.04);
}

.btn__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}


/* ===========================================
   NAVBAR
   =========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 var(--container-padding);
  background: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-base),
              box-shadow var(--transition-base);
}

.navbar--scrolled {
  background: rgba(10, 15, 28, 0.95);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  height: 64px;
}

.navbar__logo {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.navbar__logo:hover {
  opacity: 0.85;
}

.navbar__logo-accent {
  color: var(--accent-blue);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
              background var(--transition-fast);
}

.navbar__link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.navbar__link--active {
  color: var(--text-primary);
}

.navbar__external-icon {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.navbar__link:hover .navbar__external-icon {
  opacity: 0.8;
}

/* Subscribe nav link */
.navbar__link--subscribe {
  color: var(--accent-blue);
  gap: 6px;
}

.navbar__link--subscribe:hover {
  color: var(--text-primary);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.navbar__hamburger:hover {
  background: rgba(255, 255, 255, 0.05);
}

.navbar__hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 1px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger--open .navbar__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}


/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px var(--container-padding) 80px;
  background: radial-gradient(ellipse at 50% 40%, #162a4a 0%, #0a0f1c 70%);
  overflow: hidden;
}

/* Faint grid texture overlay */
.hero__grid-overlay {
  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;
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  width: 100%;
  max-width: var(--container-max);
}

/* Background Video Layer */
.hero__bg-video-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: blur(30px) saturate(1.2);
  transform: scale(1.15); /* hide blur edge artifacts */
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero__bg-video--active {
  opacity: 1;
}

.hero__bg-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 50% 40%, rgba(22, 42, 74, 0.6) 0%, rgba(10, 15, 28, 0.85) 70%),
    linear-gradient(180deg, rgba(10, 15, 28, 0.3) 0%, rgba(10, 15, 28, 0.7) 100%);
  z-index: 1;
}

/* Foreground Showcase Card */
.hero__showcase {
  width: 78%;
  max-width: 1000px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.hero__showcase-card {
  width: 100%;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow:
    0 0 80px var(--glow-blue),
    0 0 160px rgba(74, 158, 255, 0.08),
    0 20px 60px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(74, 158, 255, 0.2);
  transition: box-shadow var(--transition-slow);
}

.hero__showcase-card:hover {
  box-shadow:
    0 0 100px var(--glow-blue-strong),
    0 0 200px rgba(74, 158, 255, 0.12),
    0 20px 60px rgba(0, 0, 0, 0.4);
}

.hero__showcase-viewport {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: #000;
  overflow: hidden;
}

.hero__showcase-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.hero__showcase-video--active {
  opacity: 1;
}

.hero__showcase-label {
  padding: 10px 20px;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.3);
  letter-spacing: 0.02em;
  transition: opacity 0.4s ease;
}

/* Showcase Navigation Dots */
.hero__showcase-nav {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero__showcase-dots {
  display: flex;
  gap: 8px;
}

.hero__showcase-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid var(--text-muted);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-base);
}

.hero__showcase-dot:hover {
  border-color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.15);
}

.hero__showcase-dot--active {
  border-color: var(--accent-blue);
  background: var(--accent-blue);
  width: 24px;
  border-radius: 4px;
}

/* Hero Text */
.hero__text {
  text-align: center;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero__title-accent {
  color: var(--accent-blue);
}

.hero__tagline {
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Hero Actions */
.hero__actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* Hero Inline Subscribe */
.hero__subscribe {
  width: 100%;
  max-width: 420px;
}

.hero__subscribe-form {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px 4px 4px 14px;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.hero__subscribe-form:focus-within {
  border-color: rgba(74, 158, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.hero__subscribe-icon {
  flex-shrink: 0;
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

.hero__subscribe-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  padding: 8px 10px;
  outline: none;
  min-width: 0;
}

.hero__subscribe-input::placeholder {
  color: var(--text-muted);
}

.hero__subscribe-btn {
  flex-shrink: 0;
  padding: 8px 16px;
  background: var(--accent-blue);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  cursor: pointer;
  transition: background var(--transition-base);
  white-space: nowrap;
}

.hero__subscribe-btn:hover {
  background: #3d8be5;
}

/* Scroll Indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.hero__scroll-text {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.hero__scroll-arrow {
  color: var(--text-muted);
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.5;
  }
  50% {
    transform: translateY(8px);
    opacity: 1;
  }
}


/* ===========================================
   SCROLL ANIMATION SYSTEM
   =========================================== */
[data-animate] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-in"] {
  transform: translateY(0);
}

[data-animate="slide-up"] {
  transform: translateY(30px);
}

[data-animate="slide-left"] {
  transform: translateX(-30px);
}

[data-animate="slide-right"] {
  transform: translateX(30px);
}

[data-animate].is-visible {
  opacity: 1;
  transform: translate(0, 0);
}


/* ===========================================
   HIGHLIGHTS SECTION
   =========================================== */
.highlights {
  background: var(--bg-primary);
}

.highlights__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.highlights__card {
  padding: 40px 28px;
  text-align: center;
}

.highlights__number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.highlights__card-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.highlights__card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}


/* ===========================================
   DEMO VIDEO SECTION
   =========================================== */
.demo {
  background: var(--bg-primary);
}

.demo__video-wrapper {
  max-width: 800px;
  margin: 0 auto 48px;
}

.demo__video-card {
  padding: 0;
  overflow: hidden;
  box-shadow: 0 0 60px var(--glow-blue),
              0 20px 60px rgba(0, 0, 0, 0.4);
  border-color: rgba(74, 158, 255, 0.15);
}

.demo__video {
  display: block;
  width: 100%;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
}

.demo__workflow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.demo__step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.demo__step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--accent-blue);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
}

.demo__step-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.demo__step-arrow {
  color: var(--text-muted);
  flex-shrink: 0;
}


/* ===========================================
   METHOD SECTION
   =========================================== */
.method {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

.method__pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  overflow-x: auto;
  padding: 20px 0;
}

.method__node {
  flex: 0 0 auto;
  width: 180px;
  padding: 28px 20px;
  text-align: center;
}

.method__node-visual {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(74, 158, 255, 0.05);
  border: 1px solid rgba(74, 158, 255, 0.1);
}

.method__mini-colormap {
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-md) - 1px);
}

.method__mini-colormap--uv {
  background: linear-gradient(135deg, #0000ff, #00ffff, #00ff00, #ffff00, #ff0000);
  background-size: 300% 300%;
  animation: gradient-shift 6s ease infinite;
}

.method__mini-colormap--strain {
  background: linear-gradient(135deg, #000080, #0000ff, #00bfff, #00ff80, #ffff00, #ff8000, #ff0000, #800000);
  background-size: 300% 300%;
  animation: gradient-shift 8s ease infinite reverse;
}

.method__node-title {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.method__node-desc {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.method__connector {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 4px;
  flex-shrink: 0;
}

.method__connector-line {
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
  border-radius: 1px;
}

.method__connector-arrow {
  color: var(--accent-teal);
  flex-shrink: 0;
}

.method__summary {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}


/* ===========================================
   RESULTS GALLERY SECTION
   =========================================== */
.results {
  background: var(--bg-primary);
}

.results__carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.results__carousel-track {
  display: flex;
  transition: transform 0.5s ease;
}

.results__slide {
  flex: 0 0 100%;
  padding: 32px;
}

.results__slide-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
  align-items: end;
}

.results__slide-img {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.results__slide-img img {
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

/* Portrait pairs (Al, Foam): taller images need more height */
.results__slide-images--portrait .results__slide-img img {
  max-height: 420px;
}

/* Landscape pairs (Cavitation, Metamaterial): shorter images */
.results__slide-images--landscape .results__slide-img img {
  max-height: 320px;
}

.results__img-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
}

.results__slide-caption {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

/* Carousel Buttons */
.results__carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all var(--transition-base);
  z-index: 2;
}

.results__carousel-btn:hover {
  color: var(--text-primary);
  background: rgba(74, 158, 255, 0.15);
  border-color: rgba(74, 158, 255, 0.3);
}

.results__carousel-btn--prev {
  left: 12px;
}

.results__carousel-btn--next {
  right: 12px;
}

.results__carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 16px 0 8px;
}

.results__carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: all var(--transition-base);
}

.results__carousel-dot--active {
  background: var(--accent-blue);
  transform: scale(1.25);
}


/* ===========================================
   COMPARISON TABLE SECTION
   =========================================== */
.comparison {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}

.comparison__table-wrapper {
  max-width: 900px;
  margin: 0 auto;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.comparison__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.comparison__th {
  padding: 18px 24px;
  text-align: center;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.02);
}

.comparison__th--metric {
  text-align: left;
}

.comparison__th--raftcorr {
  color: var(--accent-blue);
  background: rgba(74, 158, 255, 0.05);
}

.comparison__table tbody tr {
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}

.comparison__table tbody tr:last-child {
  border-bottom: none;
}

.comparison__table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.comparison__metric {
  padding: 16px 24px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: left;
}

.comparison__value {
  padding: 16px 24px;
  text-align: center;
  color: var(--text-secondary);
}

.comparison__value--highlight {
  background: rgba(74, 158, 255, 0.04);
  color: var(--text-primary);
  font-weight: 500;
}

.comparison__value--advantage {
  color: var(--accent-teal);
  font-weight: 600;
}

.comparison__value--disadvantage {
  color: var(--text-muted);
}

.comparison__footnote {
  max-width: 700px;
  margin: 28px auto 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.7;
}


/* ===========================================
   TEAM SECTION
   =========================================== */
.team {
  background: var(--bg-primary);
}

.team__grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.team__member {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-width: 120px;
}

.team__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(74, 158, 255, 0.15), rgba(0, 212, 170, 0.1));
  border: 2px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  overflow: hidden;
}

.team__avatar:hover {
  border-color: rgba(74, 158, 255, 0.3);
  box-shadow: 0 0 30px var(--glow-blue);
}

.team__avatar--pi {
  border-color: rgba(74, 158, 255, 0.3);
  background: linear-gradient(135deg, rgba(74, 158, 255, 0.2), rgba(0, 212, 170, 0.15));
}

.team__avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team__initials {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.02em;
}

.team__name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.team__role {
  font-size: 0.8125rem;
  color: var(--text-muted);
}


/* ===========================================
   CITATION SECTION
   =========================================== */
.citation {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.citation__block {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.citation__code {
  padding: 32px;
  padding-right: 80px;
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--text-secondary);
  tab-size: 2;
}

.citation__code code {
  font-family: inherit;
}

.citation__copy-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  transition: all var(--transition-base);
}

.citation__copy-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

.citation__copy-btn--copied {
  color: var(--accent-teal);
  border-color: rgba(0, 212, 170, 0.3);
}

.citation__copy-icon {
  width: 16px;
  height: 16px;
}


/* ===========================================
   NEWSLETTER SECTION
   =========================================== */
.newsletter {
  background: var(--bg-secondary);
  padding: 80px 0;
}

.newsletter__card {
  max-width: 560px;
  margin: 0 auto;
  padding: 48px 40px;
  text-align: center;
}

.newsletter__icon {
  margin-bottom: 20px;
  opacity: 0.8;
}

.newsletter__title {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.newsletter__desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.newsletter__form {
  margin-bottom: 16px;
}

.newsletter__input-group {
  display: flex;
  gap: 10px;
  max-width: 420px;
  margin: 0 auto;
}

.newsletter__input {
  flex: 1;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.newsletter__input::placeholder {
  color: var(--text-muted);
}

.newsletter__input:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.15);
}

.newsletter__btn {
  flex-shrink: 0;
  padding: 12px 24px;
}

.newsletter__privacy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.newsletter__success {
  color: var(--accent-teal);
  font-weight: 500;
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

/* Newsletter subscribed confirmation */
.newsletter__confirmed {
  display: none;
  color: var(--accent-teal);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 12px 0;
}

.newsletter__confirmed--visible {
  display: block;
}


/* ===========================================
   FOOTER
   =========================================== */
.footer {
  background: var(--footer-bg);
  padding: 40px var(--container-padding);
  border-top: 1px solid var(--border-subtle);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
}

.footer__brand {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 400;
}

.footer__brand-accent {
  color: var(--accent-blue);
}

.footer__links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer__link {
  font-size: 0.8125rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--text-secondary);
}

.footer__divider {
  color: var(--text-muted);
  opacity: 0.4;
  font-size: 0.75rem;
}


/* ===========================================
   RESPONSIVE BREAKPOINTS
   =========================================== */

/* Tablet landscape and below */
@media (max-width: 1024px) {
  .section {
    padding: 96px 0;
  }

  .hero__video-card {
    width: 80%;
  }

  .highlights__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .method__pipeline {
    gap: 0;
  }

  .method__node {
    width: 160px;
    padding: 24px 16px;
  }

  .method__connector-line {
    width: 20px;
  }

  .team__grid {
    gap: 36px;
  }
}

/* Tablet portrait and below */
@media (max-width: 768px) {
  :root {
    --container-padding: 20px;
  }

  .section {
    padding: 80px 0;
  }

  .section__subtitle {
    margin-bottom: 40px;
  }

  /* Navbar mobile */
  .navbar__hamburger {
    display: flex;
  }

  .navbar__links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 15, 28, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base),
                opacity var(--transition-base);
  }

  .navbar__links--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .navbar__link {
    width: 100%;
    padding: 12px 16px;
    justify-content: center;
    font-size: 1rem;
  }

  /* Hero mobile */
  .hero {
    padding: 80px var(--container-padding) 60px;
  }

  .hero__video-card {
    width: 95%;
  }

  .hero__content {
    gap: 32px;
  }

  .hero__title {
    font-size: clamp(2.25rem, 8vw, 3rem);
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
    max-width: 280px;
  }

  .btn {
    justify-content: center;
    width: 100%;
  }

  .hero__subscribe {
    max-width: 100%;
    padding: 0 20px;
  }

  .hero__scroll-indicator {
    bottom: 20px;
  }

  /* Method mobile — vertical layout */
  .method__pipeline {
    flex-direction: column;
    gap: 8px;
  }

  .method__node {
    width: 100%;
    max-width: 280px;
  }

  .method__connector {
    transform: rotate(90deg);
    padding: 4px 0;
  }

  /* Results mobile */
  .results__slide {
    padding: 20px;
  }

  .results__slide-images {
    flex-direction: column;
    align-items: center;
    gap: 16px;
    max-height: none;
  }

  .results__slide-images--portrait,
  .results__slide-images--landscape {
    max-height: none;
  }

  .results__slide-img {
    max-width: 80%;
  }

  .results__slide-img img,
  .results__slide-images--portrait .results__slide-img img,
  .results__slide-images--landscape .results__slide-img img {
    max-height: 250px;
  }

  .results__carousel-btn {
    width: 36px;
    height: 36px;
  }

  .results__carousel-btn--prev {
    left: 4px;
  }

  .results__carousel-btn--next {
    right: 4px;
  }

  /* Demo mobile */
  .demo__workflow {
    gap: 12px;
  }

  .demo__step-arrow {
    display: none;
  }

  .demo__workflow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    justify-items: center;
  }

  /* Team mobile */
  .team__grid {
    gap: 28px;
  }

  .team__member {
    min-width: 100px;
  }

  /* Newsletter mobile */
  .newsletter__card {
    padding: 36px 24px;
  }

  .newsletter__input-group {
    flex-direction: column;
  }

  .newsletter__btn {
    width: 100%;
    justify-content: center;
  }

  /* Footer mobile */
  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  /* Comparison table mobile */
  .comparison__table-wrapper {
    border-radius: var(--radius-md);
  }

  .comparison__th,
  .comparison__metric,
  .comparison__value {
    padding: 12px 14px;
    font-size: 0.8125rem;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  :root {
    --container-padding: 16px;
  }

  .section {
    padding: 64px 0;
  }

  .highlights__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .highlights__card {
    padding: 28px 20px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__tagline {
    font-size: 0.9375rem;
  }

  .hero__video-card {
    width: 100%;
  }

  .team__grid {
    gap: 24px;
  }

  .team__avatar {
    width: 64px;
    height: 64px;
  }

  .team__initials {
    font-size: 1rem;
  }

  .citation__code {
    padding: 20px;
    padding-right: 20px;
    font-size: 0.6875rem;
  }

  .citation__copy-btn {
    position: relative;
    top: auto;
    right: auto;
    margin: 0 20px 20px;
    width: calc(100% - 40px);
    justify-content: center;
  }

  .comparison__th,
  .comparison__metric,
  .comparison__value {
    padding: 10px 10px;
    font-size: 0.75rem;
  }
}


/* ===========================================
   EDGE CASE RESPONSIVE FIXES
   =========================================== */

/* --- Ultra-wide screens (3440x1440, 2560x1080) --- */
@media (min-width: 1800px) {
  .hero__content {
    max-width: 1400px;
  }

  .container {
    max-width: 1400px;
  }

  .hero__video-card {
    width: 70%;
    max-width: 1100px;
  }

  .navbar__inner {
    max-width: 1400px;
  }

  .footer__inner {
    max-width: 1400px;
  }

  .comparison__table-wrapper {
    max-width: 1000px;
  }

  .demo__video-wrapper {
    max-width: 900px;
  }

  .results__carousel {
    max-width: 1000px;
  }
}

/* --- Short viewports / small laptops (1366x768) --- */
@media (max-height: 800px) {
  .hero {
    padding-top: 80px;
    padding-bottom: 60px;
    min-height: auto;
  }

  .hero__content {
    gap: 24px;
  }

  .hero__video-card {
    width: 65%;
  }

  .hero__scroll-indicator {
    position: relative;
    bottom: auto;
    left: auto;
    transform: none;
    margin-top: 16px;
  }
}

/* Combine short + narrow to avoid stacking with mobile layout */
@media (max-height: 800px) and (min-width: 769px) {
  .hero__title {
    font-size: clamp(2.25rem, 4vw, 3.5rem);
  }

  .section {
    padding: 80px 0;
  }
}

/* --- Very small phones (320x568, iPhone SE 1st gen) --- */
@media (max-width: 360px) {
  :root {
    --container-padding: 12px;
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .hero__tagline {
    font-size: 0.875rem;
  }

  .hero__content {
    gap: 24px;
  }

  .hero__actions {
    max-width: 100%;
  }

  .btn {
    padding: 12px 20px;
    font-size: 0.875rem;
  }

  .section__title {
    font-size: 1.5rem;
  }

  .section__subtitle {
    font-size: 0.875rem;
    margin-bottom: 32px;
  }

  .highlights__card {
    padding: 20px 16px;
  }

  .highlights__number {
    font-size: 1.75rem;
  }

  .highlights__card-title {
    font-size: 1rem;
  }

  .method__node {
    max-width: 240px;
    padding: 20px 12px;
  }

  .method__node-visual {
    width: 64px;
    height: 64px;
  }

  .results__slide {
    padding: 16px 12px;
  }

  .results__slide-caption {
    font-size: 0.8125rem;
  }

  /* Comparison table: ensure minimum readable width with horizontal scroll */
  .comparison__table {
    min-width: 480px;
  }

  .comparison__th,
  .comparison__metric,
  .comparison__value {
    padding: 8px 8px;
    font-size: 0.6875rem;
    white-space: nowrap;
  }

  .citation__code {
    font-size: 0.625rem;
    padding: 16px;
  }

  .team__grid {
    gap: 20px;
  }

  .team__avatar {
    width: 56px;
    height: 56px;
  }

  .team__initials {
    font-size: 0.875rem;
  }

  .team__name {
    font-size: 0.875rem;
  }

  .team__role {
    font-size: 0.75rem;
  }

  .demo__step {
    padding: 6px 10px;
  }

  .demo__step-label {
    font-size: 0.75rem;
  }

  .footer__brand {
    font-size: 0.75rem;
  }

  .footer__link {
    font-size: 0.75rem;
  }
}

/* --- Landscape phones (e.g. 667x375, 812x375) --- */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 72px var(--container-padding) 32px;
  }

  .hero__content {
    gap: 16px;
  }

  .hero__showcase {
    width: 92%;
    max-width: 400px;
  }

  /* Hide background video layer on mobile to save bandwidth and video slots */
  .hero__bg-video-layer {
    display: none;
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .hero__tagline {
    font-size: 0.875rem;
  }

  .hero__actions {
    flex-direction: row;
    width: auto;
    max-width: none;
  }

  .hero__actions .btn {
    width: auto;
  }

  .hero__scroll-indicator {
    display: none;
  }

  .section {
    padding: 48px 0;
  }

  .section__subtitle {
    margin-bottom: 24px;
  }

  /* Navbar should not eat too much vertical space */
  .navbar__inner {
    height: 48px;
  }

  .navbar__links {
    top: 48px;
  }
}

/* --- Touch target minimum sizes (44px) on touch devices --- */
@media (max-width: 768px) {
  .results__carousel-btn {
    min-width: 44px;
    min-height: 44px;
  }

  /* Enlarge dot tap area while keeping visual size small */
  .results__carousel-dot {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: 0;
    transform: none;
  }

  .results__carousel-dot::after {
    content: "";
    display: block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: all var(--transition-base);
  }

  .results__carousel-dot--active {
    background: transparent;
    transform: none;
  }

  .results__carousel-dot--active::after {
    background: var(--accent-blue);
    transform: scale(1.25);
  }

  .navbar__hamburger {
    min-width: 44px;
    min-height: 44px;
  }

  .footer__link {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* Ensure buttons meet minimum touch target */
  .btn {
    min-height: 44px;
  }
}