/* ==========================================================================
   Mo Taoana - Digital Systems Architect
   Main Stylesheet
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables & Theme Configuration
   -------------------------------------------------------------------------- */
:root {
  /* Light Mode Colors (Default) */
  --bg-primary: #F0F2F5;
  --bg-surface: #FFFFFF;
  --bg-container: #E8EAED;
  --text-primary: #0D1B2A;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --accent: #CCFF00;
  --accent-glow: rgba(204, 255, 0, 0.3);
  --accent-hover: rgba(204, 255, 0, 0.8);
  --border-color: #E0E0E0;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-strong: rgba(0, 0, 0, 0.15);

  /* Typography */
  --font-display: 'Bahnschrift', sans-serif;
  --font-body: 'Libre Baskerville', serif;
  --font-ui: 'Red Hat Display', sans-serif;
  --font-meta: 'Inter', sans-serif;
  --font-accent: 'Satisfy', cursive;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-section: 120px;

  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
  --header-height-scrolled: 64px;
  --border-radius: 12px;
  --border-radius-sm: 6px;

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-base: 300ms ease-out;
  --transition-slow: 500ms ease-out;
  --transition-reveal: 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #030608;
  --bg-surface: #050B10;
  --bg-container: #0A1621;
  --text-primary: #ADB8C4;
  --text-secondary: #7C8B9C;
  --text-muted: #5A6672;
  --accent: #CCFF00;
  --accent-glow: rgba(204, 255, 0, 0.25);
  --accent-hover: rgba(204, 255, 0, 0.85);
  --border-color: #0A1621;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-strong: rgba(0, 0, 0, 0.5);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

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

ul, ol {
  list-style: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

h4 {
  font-family: var(--font-ui);
  font-size: 1.125rem;
  font-weight: 500;
}

.body-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
}

.ui-text {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 700;
}

.meta-text {
  font-family: var(--font-meta);
  font-size: 0.8125rem;
  font-weight: 400;
}

/* Masculine Cursive - used for tagline */
.accent-text {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  font-weight: 600;
  font-style: italic;
  letter-spacing: 0.02em;
}

small, .disclaimer {
  font-family: var(--font-meta);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.italic {
  font-style: italic;
}

/* --------------------------------------------------------------------------
   Layout Components
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  position: relative;
  padding: var(--space-section) 0;
  overflow: hidden;
  z-index: 10;
}

.section--hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.section--promo {
  padding: var(--space-md) 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section--apps {
  background: var(--bg-primary);
}

.section--services {
  background: var(--bg-surface);
}

.section--blog {
  background: var(--bg-primary);
}

.section--protocol {
  background: var(--bg-surface);
}

.section--contact {
  background: var(--bg-primary);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
}

@media (max-width: 968px) {
  .two-column {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header--scrolled {
  height: var(--header-height-scrolled);
  box-shadow: 0 4px 20px var(--shadow);
}

.header__logo {
  height: 40px;
  width: auto;
}

.header__logo img {
  height: 100%;
  width: auto;
}

.header__nav {
  display: flex;
  gap: var(--space-xl);
}

.header__nav-link {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-fast);
  position: relative;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.header__nav-link:hover {
  color: var(--text-primary);
}

.header__nav-link:hover::after {
  width: 100%;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }

  .header {
    padding: 0 var(--space-md);
  }
}

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  width: 32px;
  height: 32px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-fast);
}

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

/* Theme Toggle */
.theme-toggle {
  width: 48px;
  height: 24px;
  background: var(--bg-container);
  border-radius: 12px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition-base);
}

.theme-toggle::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: 50%;
  transition: transform var(--transition-base);
}

[data-theme="dark"] .theme-toggle::before {
  transform: translateX(24px);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn--primary {
  background: var(--accent);
  color: #0D1B2A;
  box-shadow: 0 0 20px var(--accent-glow);
  padding: 10px 20px;
  font-size: 0.75rem;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px var(--accent-glow), 0 4px 20px var(--shadow);
}

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

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: var(--space-sm) var(--space-md);
}

.btn--ghost:hover {
  color: var(--accent);
}

.btn--cta {
  background: var(--accent);
  color: #0D1B2A;
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1rem;
  box-shadow: 0 0 40px var(--accent-glow);
}

.btn--cta:hover {
  transform: scale(1.02);
  box-shadow: 0 0 60px var(--accent-glow);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-4px);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--accent);
}

.card__title {
  font-family: var(--font-ui);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.card__description {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* App Card */
.app-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.app-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 40px var(--shadow);
  transform: translateY(-8px);
}

.app-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background: var(--bg-container);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
}

.app-card__name {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.app-card__tagline {
  font-family: var(--font-meta);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Blog Card */
.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  min-width: 320px;
  max-width: 400px;
}

.blog-card:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 40px var(--shadow);
}

.blog-card__image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--bg-container);
}

.blog-card__content {
  padding: var(--space-lg);
}

.blog-card__category {
  font-family: var(--font-meta);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
}

.blog-card__title {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  color: var(--text-primary);
}

.blog-card__excerpt {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  background: var(--bg-primary);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.hero__frames-container {
  position: relative;
  width: 100%;
  height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.hero__frame {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 90%;
  max-height: 90%;
  width: auto;
  height: auto;
  opacity: 0;
  transition: opacity 0.05s linear;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__frame img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.hero__frame.active {
  opacity: 1;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 70vh;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    transparent 60%,
    var(--bg-primary) 100%
  );
  z-index: 3;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-lg);
}

.hero__tagline {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.5rem;
  font-weight: 600;
  font-style: italic;
  color: var(--accent);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out 0.5s forwards;
}

.hero__headline {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out 0.7s forwards;
}

.hero__subheadline {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out 0.9s forwards;
}

.hero__cta {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s ease-out 1.1s forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .hero__tagline {
    font-size: 1.5rem;
  }

  .hero__headline {
    font-size: 2.5rem;
  }

  .hero__subheadline {
    font-size: 1rem;
  }
}

/* --------------------------------------------------------------------------
   Promo Marquee - Seamless Loop
   -------------------------------------------------------------------------- */
.marquee {
  overflow: hidden;
  white-space: nowrap;
  position: relative;
}

.marquee::before,
.marquee::after {
  content: '';
  position: absolute;
  top: 0;
  width: 60px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.marquee::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-surface), transparent);
}

.marquee::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-surface), transparent);
}

.marquee__content {
  display: flex;
  width: max-content;
  animation: marquee 60s linear infinite;
}

.marquee__content:hover {
  animation-play-state: paused;
}

.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-lg);
  padding: 0 var(--space-2xl);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
}

.marquee__item a {
  color: var(--accent);
  transition: opacity var(--transition-fast);
}

.marquee__item a:hover {
  opacity: 0.8;
}

.marquee__separator {
  color: var(--text-muted);
  padding: 0 var(--space-md);
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* --------------------------------------------------------------------------
   Section Headers
   -------------------------------------------------------------------------- */
.section__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section__label {
  font-family: var(--font-meta);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.section__title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .section__title {
    font-size: 2rem;
  }
}

/* --------------------------------------------------------------------------
   Apps Section
   -------------------------------------------------------------------------- */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

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

@media (max-width: 640px) {
  .apps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.apps-disclaimer {
  text-align: center;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.apps-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services-category {
  margin-bottom: var(--space-2xl);
}

.services-category:last-child {
  margin-bottom: 0;
}

.services-category__title {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.services-category__title svg {
  width: 24px;
  height: 24px;
}

.services-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
}

.service-item:hover {
  border-color: var(--accent);
  transform: translateX(8px);
}

.service-item__icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--bg-container);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.service-item__icon svg {
  width: 20px;
  height: 20px;
}

.service-item__content {
  flex: 1;
}

.service-item__title {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.service-item__description {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Blog/Protocol Carousel - Slow Marquee Style
   -------------------------------------------------------------------------- */
.carousel {
  position: relative;
  overflow: hidden;
  padding: var(--space-lg) 0;
}

.carousel__track {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-md) 0;
  cursor: grab;
}

.carousel__track:active {
  cursor: grabbing;
}

.carousel--blog .carousel__track {
  animation: marqueeLeft 40s linear infinite;
  width: max-content;
}

.carousel--protocol .carousel__track {
  animation: marqueeRight 40s linear infinite;
  width: max-content;
}

.carousel__track:hover,
.carousel:hover .carousel__track {
  animation-play-state: paused;
}

.carousel__item {
  flex-shrink: 0;
}

/* Blog Card - Center Aligned with Border */
.blog-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: all var(--transition-base);
  min-width: 280px;
  max-width: 320px;
  box-shadow: 0 4px 20px var(--shadow);
}

.blog-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 30px var(--accent-glow), 0 8px 40px var(--shadow);
  transform: translateY(-8px) scale(1.02);
}

.blog-card__image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--bg-container);
}

.blog-card__content {
  padding: var(--space-lg);
}

.blog-card__category {
  font-family: var(--font-meta);
  font-size: 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
}

.blog-card__title {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
  color: var(--text-primary);
}

.blog-card__excerpt {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Marquee Animations */
@keyframes marqueeLeft {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@keyframes marqueeRight {
  0% {
    transform: translateX(-50%);
  }
  100% {
    transform: translateX(0);
  }
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
  background: var(--bg-surface);
}

.contact-wrapper {
  max-width: 600px;
  margin: 0 auto;
}

.contact-heading {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.contact-subheading {
  text-align: center;
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 600;
  font-style: italic;
  color: var(--accent);
  letter-spacing: 0.02em;
  color: var(--accent);
  margin-bottom: var(--space-2xl);
}

.contact-form {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-2xl);
}

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

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-submit {
  width: 100%;
  margin-top: var(--space-md);
}

/* --------------------------------------------------------------------------
   Contact Car Background with Fade Transitions
   -------------------------------------------------------------------------- */
.contact-car-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.contact-car-bg__layer {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60%;
  max-width: 800px;
  opacity: 0;
  transition: opacity 2s ease-in-out;
  filter: grayscale(100%) brightness(0.3) contrast(0.6) saturate(0);
  mix-blend-mode: screen;
}

.contact-car-bg__layer.active {
  opacity: 1;
}

.contact-car-bg__layer img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.contact-section .container {
  position: relative;
  z-index: 1;
}

/* Contact Car Background with Fade Transitions - REMOVED */

/* Form Validation */
.form-input.error,
.form-select.error {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.form-error {
  display: none;
  font-family: var(--font-meta);
  font-size: 0.75rem;
  color: #EF4444;
  margin-top: var(--space-xs);
}

.form-input.error ~ .form-error,
.form-input.error + .form-error {
  display: block;
}

.form-group:has(.form-input.error) .form-error,
.form-group:has(.form-select.error) .form-error {
  display: block;
}

/* Social Links */
.social-links {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-container);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  color: var(--accent);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--accent);
  color: #0D1B2A;
  transform: translateY(-4px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-container);
  border-top: 1px solid var(--border-color);
  padding: var(--space-2xl) 0;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
  display: block;
  visibility: visible;
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer__logo {
  height: 32px;
  width: auto;
}

.footer__logo img {
  height: 100%;
  width: auto;
}

.footer__links {
  display: flex;
  gap: var(--space-xl);
}

.footer__link {
  font-family: var(--font-meta);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

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

.footer__status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-meta);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #22C55E;
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.footer__disclaimer {
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .footer__content {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    justify-content: center;
  }
}

/* --------------------------------------------------------------------------
   Production Line Animation - Center Glowing Line
   -------------------------------------------------------------------------- */
.production-line {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: calc(100% - 80px);
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.production-line.visible {
  opacity: 1;
}

.production-line__path {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--accent) 5%,
    var(--accent) 95%,
    transparent 100%
  );
  opacity: 0.15;
}

.production-line__dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 
    0 0 10px var(--accent),
    0 0 20px var(--accent),
    0 0 40px var(--accent-glow);
  z-index: 2;
  transition: top 0.1s ease-out, box-shadow 0.3s ease;
}

.production-line__dot.glow-intense {
  box-shadow: 
    0 0 15px var(--accent),
    0 0 30px var(--accent),
    0 0 60px var(--accent),
    0 0 100px var(--accent-glow);
  width: 20px;
  height: 20px;
}

/* Pulse animation for active section */
@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 
      0 0 10px var(--accent),
      0 0 20px var(--accent),
      0 0 40px var(--accent-glow);
  }
  50% {
    box-shadow: 
      0 0 15px var(--accent),
      0 0 30px var(--accent),
      0 0 60px var(--accent-glow),
      0 0 80px var(--accent-glow);
  }
}

.production-line__dot.pulsing {
  animation: pulseGlow 2s ease-in-out infinite;
}

/* --------------------------------------------------------------------------
   Car Progress Background - Very Subtle Background Element
   -------------------------------------------------------------------------- */
.car-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.car-progress.visible {
  opacity: 1;
}

.car-progress__layer {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  max-width: 1200px;
  opacity: 0;
  transition: opacity 1s ease;
  filter: grayscale(100%) brightness(0.08) contrast(0.3) saturate(0);
  mix-blend-mode: screen;
}

.car-progress__layer.active {
  opacity: 1;
}

.car-progress__layer img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* --------------------------------------------------------------------------
   Subpage Specific
   -------------------------------------------------------------------------- */
.subpage-header {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.subpage-header__title {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.subpage-header__subtitle {
  font-family: var(--font-body);
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* App/Service Full List */
.full-list {
  padding: var(--space-3xl) 0;
}

.full-list__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

/* About Page */
.about-section {
  padding: var(--space-3xl) 0;
}

.about-section__content {
  max-width: 800px;
  margin: 0 auto;
}

.about-section__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
  color: var(--accent);
}

.about-section__text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.about-section__text:last-child {
  margin-bottom: 0;
}

.founder-card {
  display: flex;
  gap: var(--space-2xl);
  align-items: flex-start;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--space-2xl);
}

.founder-card__image {
  width: 200px;
  height: 200px;
  border-radius: var(--border-radius);
  object-fit: cover;
  flex-shrink: 0;
}

.founder-card__content {
  flex: 1;
}

.founder-card__name {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.founder-card__title {
  font-family: var(--font-meta);
  font-size: 0.875rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
}

.founder-card__quote {
  font-family: var(--font-body);
  font-style: italic;
  color: var(--text-secondary);
  padding-left: var(--space-lg);
  border-left: 3px solid var(--accent);
  margin-bottom: var(--space-lg);
}

.founder-card__signature {
  max-width: 180px;
  height: auto;
  margin-top: var(--space-lg);
  opacity: 0.9;
}

@media (max-width: 768px) {
  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .founder-card__quote {
    border-left: none;
    border-top: 3px solid var(--accent);
    padding-left: 0;
    padding-top: var(--space-lg);
  }
}

/* Pillars */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.pillar {
  text-align: center;
  padding: var(--space-xl);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
}

.pillar__code {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-sm);
}

.pillar__name {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.pillar__description {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

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

/* Fade In Animation */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

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

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-md) var(--space-lg);
  background: var(--accent);
  color: #0D1B2A;
  font-family: var(--font-ui);
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  z-index: 10000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------------------------------------
   Print Styles
   -------------------------------------------------------------------------- */
@media print {
  .header,
  .footer,
  .production-line,
  .btn {
    display: none !important;
  }

  .section {
    padding: var(--space-lg) 0;
  }

  body {
    background: white;
    color: black;
  }
}