/* =============================================
   BeezGroup - Professional Dark Corporate Website
   Dark Mode Only | Black, Grey, White Color Grading
   Modern, Responsive, Mobile-First Design
   ============================================= */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@600;700&display=swap");

/* =============================================
   CSS Custom Properties
   ============================================= */
:root {
  /* Brand Colors */
  --white: #FFFFFF;
  --off-white: #F0F0F0;
  --gray-100: #E8E8E8;
  --gray-200: #D1D1D1;
  --gray-300: #B0B0B0;
  --gray-400: #8A8A8A;
  --gray-500: #6B6B6B;
  --gray-600: #4A4A4A;
  --gray-700: #333333;
  --gray-800: #1E1E1E;
  --gray-900: #141414;
  --black: #0A0A0A;
  --pure-black: #000000;

  /* Accent */
  --accent: #FFFFFF;
  --accent-dim: rgba(255, 255, 255, 0.08);
  --accent-glow: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

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

  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.5rem;
  --nav-height: 72px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 40px rgba(255, 255, 255, 0.05);

  /* Borders */
  --border-subtle: 1px solid rgba(255, 255, 255, 0.06);
  --border-light: 1px solid rgba(255, 255, 255, 0.1);
  --border-accent: 1px solid rgba(255, 255, 255, 0.2);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--black);
  color: var(--gray-300);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: var(--white);
  text-decoration: none;
  transition: color var(--transition-base), opacity var(--transition-base);
}

a:hover {
  color: var(--gray-200);
  opacity: 0.85;
}

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

h1, h2, h3, h4, h5, h6 {
  color: var(--white);
  font-weight: 600;
  line-height: 1.2;
}

::selection {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--black);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-700);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-600);
}

/* =============================================
   Scroll Progress Bar
   ============================================= */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, var(--gray-500), var(--white));
  z-index: 10000;
  transition: width 50ms linear;
}

/* =============================================
   Page Loader
   ============================================= */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid var(--gray-800);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =============================================
   Navigation
   ============================================= */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--container-padding);
  z-index: 1000;
  transition: all var(--transition-base);
  background: transparent;
}

nav.scrolled {
  background: rgba(10, 10, 10, 0.92);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: var(--border-subtle);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.5);
}

.nav-left {
  display: flex;
  align-items: center;
}

.flex-div {
  display: flex;
  align-items: center;
}

.nav-left h3 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}

.nav-left h3 span {
  color: var(--gray-400);
  font-weight: 400;
}

.nav-left a {
  text-decoration: none;
}

.nav-left a:hover {
  opacity: 1;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-right a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-400);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-base);
}

.nav-right a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width var(--transition-base);
}

.nav-right a:hover,
.nav-right a.active {
  color: var(--white);
  opacity: 1;
}

.nav-right a:hover::after,
.nav-right a.active::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.navbar-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
}

.navbar-icon span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger[aria-expanded="true"] .navbar-icon span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger[aria-expanded="true"] .navbar-icon span:nth-child(2) {
  opacity: 0;
}

.hamburger[aria-expanded="true"] .navbar-icon span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Products Dropdown */
.nav-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-400);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-base);
}

.nav-dropdown-toggle::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width var(--transition-base);
}

.nav-dropdown-toggle:hover,
.nav-dropdown.open .nav-dropdown-toggle {
  color: var(--white);
}

.nav-dropdown-toggle:hover::after,
.nav-dropdown.open .nav-dropdown-toggle::after {
  width: 100%;
}

.nav-dropdown-caret {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  transition: transform var(--transition-base);
}

.nav-dropdown.open .nav-dropdown-caret {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 50%;
  min-width: 170px;
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  background: rgba(10, 10, 10, 0.98);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -6px);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
  z-index: 10;
}

.nav-dropdown.open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  white-space: nowrap;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base), color var(--transition-base);
}

.nav-dropdown-menu a::after {
  content: none;
}

.nav-dropdown-menu a:hover {
  background: var(--accent-dim);
}

/* =============================================
   Hero Section
   ============================================= */
#carousel {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--container-padding) var(--space-3xl);
  overflow: hidden;
}

#carousel::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(255,255,255,0.03) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(255,255,255,0.02) 0%, transparent 50%),
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(255,255,255,0.015) 0%, transparent 50%);
  pointer-events: none;
}

#carousel::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to top, var(--black), transparent);
  pointer-events: none;
}

.head-text {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
  animation: heroFadeUp 0.8s ease-out both;
}

.head-text span {
  color: var(--gray-400);
  font-style: italic;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--gray-400);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
  position: relative;
  z-index: 1;
  animation: heroFadeUp 0.8s ease-out 0.15s both;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
  animation: heroFadeUp 0.8s ease-out 0.3s both;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--off-white);
  color: var(--black);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.15);
  opacity: 1;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--white);
  transform: translateY(-2px);
  opacity: 1;
}

.btn-dark {
  background: var(--gray-800);
  color: var(--white);
  border: var(--border-light);
}

.btn-dark:hover {
  background: var(--gray-700);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  opacity: 1;
}

/* =============================================
   Main Content Container
   ============================================= */
.col-sm-8 {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4xl) var(--container-padding);
}

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

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

.text-center .section-divider {
  margin-left: auto;
  margin-right: auto;
}

/* =============================================
   Section Headers
   ============================================= */
.section-header {
  margin-bottom: var(--space-3xl);
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

.section-divider {
  width: 60px;
  height: 2px;
  background: var(--gray-600);
  margin-bottom: var(--space-lg);
}

.section-header p {
  color: var(--gray-400);
  font-size: 1.05rem;
  max-width: 600px;
  line-height: 1.8;
}

.text-center .section-header p,
.text-center .cta-text {
  margin-left: auto;
  margin-right: auto;
}

.mt-section {
  margin-top: var(--space-4xl);
}

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

/* =============================================
   Feature Grid & Cards
   ============================================= */
.beezgroup-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.beezgroup-info > p {
  color: var(--gray-400);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.feature-card {
  background: var(--gray-900);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

.feature-card p {
  color: var(--gray-400);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* =============================================
   Blockquote
   ============================================= */
blockquote {
  position: relative;
  padding: var(--space-2xl) var(--space-2xl) var(--space-2xl) var(--space-3xl);
  margin: var(--space-2xl) 0;
  background: var(--gray-900);
  border-left: 3px solid var(--gray-600);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

blockquote::before {
  content: '\201C';
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--gray-700);
  line-height: 1;
}

blockquote p {
  color: var(--gray-300);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: var(--space-md);
  font-style: italic;
}

blockquote p:last-of-type {
  margin-bottom: var(--space-lg);
}

blockquote footer {
  color: var(--gray-500);
  font-size: 0.9rem;
  font-style: normal;
  letter-spacing: 0.02em;
}

/* =============================================
   Content Paragraphs
   ============================================= */
.content-paragraph {
  color: var(--gray-400);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.content-paragraph strong {
  color: var(--white);
  font-weight: 600;
}

.cta-text {
  color: var(--gray-400);
  font-size: 1.05rem;
  margin-bottom: var(--space-xl);
}

/* =============================================
   Portfolio Grid
   ============================================= */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.portfolio-card {
  display: block;
  background: var(--gray-900);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  text-decoration: none;
  position: relative;
}

.portfolio-card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  color: var(--white);
  opacity: 1;
}

.portfolio-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform var(--transition-slow);
  filter: grayscale(40%) brightness(0.8);
}

.portfolio-card:hover img {
  transform: scale(1.05);
  filter: grayscale(0%) brightness(0.9);
}

.portfolio-card-content {
  padding: var(--space-xl);
}

.portfolio-card-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.01em;
}

.portfolio-card-content p {
  color: var(--gray-400);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* =============================================
   Research List
   ============================================= */
.research-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.research-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding: var(--space-2xl);
  background: var(--gray-900);
  border: var(--border-subtle);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.research-item:hover {
  background: var(--gray-800);
  border-color: rgba(255, 255, 255, 0.1);
}

.research-item-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-xl);
}

.research-item-number {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray-600);
  min-width: 30px;
  letter-spacing: 0.05em;
}

.research-item h3 {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.research-item-date {
  margin-top: var(--space-xs);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.research-item-desc {
  color: var(--gray-400);
  font-size: 0.92rem;
  line-height: 1.7;
}

.research-item .btn {
  align-self: flex-start;
}

/* =============================================
   About Page - Letter Layout
   ============================================= */
.letter-content {
  max-width: 800px;
}

.letter-date {
  color: var(--gray-500);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-lg);
  border-bottom: var(--border-subtle);
}

.letter-section {
  margin-bottom: var(--space-3xl);
}

.letter-section h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.01em;
}

.letter-section p {
  color: var(--gray-400);
  font-size: 1rem;
  line-height: 1.9;
  margin-bottom: var(--space-md);
}

.signature {
  margin-top: var(--space-4xl);
  padding-top: var(--space-2xl);
  border-top: var(--border-subtle);
}

.signature p {
  color: var(--gray-400);
  font-size: 1rem;
  line-height: 1.8;
}

.signature strong {
  color: var(--white);
  font-weight: 600;
  font-size: 1.1rem;
}

.signature-text {
  color: var(--gray-400);
  font-size: 1rem;
  line-height: 1.9;
  margin-top: var(--space-lg);
}

.commitment-text {
  margin-top: var(--space-lg);
}

.commitment-text a {
  color: var(--gray-400);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gray-600);
  transition: all var(--transition-base);
}

.commitment-text a:hover {
  color: var(--white);
  text-decoration-color: var(--gray-400);
  opacity: 1;
}

/* =============================================
   The PolyMath - Form Embed
   ============================================= */
.polymath-form {
  margin: var(--space-3xl) 0;
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--gray-900);
}

.polymath-form iframe {
  display: block;
  border: none;
  background: var(--white);
}

/* =============================================
   Countdown Timer
   ============================================= */
.countdown-wrap {
  min-height: 100vh;
  min-height: 100svh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + var(--space-3xl)) var(--container-padding) var(--space-3xl);
  max-width: var(--container-max);
  margin: 0 auto;
}

.countdown-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: var(--space-md);
}

.countdown-wrap .head-text {
  margin-bottom: var(--space-md);
}

.countdown-wrap .hero-subtitle {
  margin-bottom: var(--space-2xl);
}

.countdown-note {
  margin-top: var(--space-xl);
  color: var(--gray-400);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 600px;
}

.countdown-note a {
  color: var(--white);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--gray-600);
  transition: color var(--transition-base), text-decoration-color var(--transition-base);
}

.countdown-note a:hover {
  color: var(--off-white);
  text-decoration-color: var(--gray-300);
  opacity: 1;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: var(--space-md);
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  justify-content: center;
  justify-items: stretch;
}

.countdown-card {
  background: var(--gray-900);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.countdown-value {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.countdown-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
}

@media (max-width: 992px) {
  .countdown-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .countdown-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* =============================================
   Product Announcement
   ============================================= */
.announcement-wrap {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 1;
}

.announcement-card {
  background: var(--gray-900);
  border: var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl) var(--space-2xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  position: relative;
  overflow: hidden;
}

.announcement-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.announcement-eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
}

.announcement-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.announcement-title span {
  color: var(--gray-400);
  font-style: italic;
}

.announcement-text {
  color: var(--gray-400);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 640px;
}

.announcement-card .btn {
  margin-top: var(--space-md);
}

@media (max-width: 600px) {
  .announcement-card {
    padding: var(--space-2xl) var(--space-lg);
  }
}

/* =============================================
   Footer
   ============================================= */
.site-footer {
  background: var(--pure-black);
  border-top: var(--border-subtle);
  margin-top: var(--space-4xl);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4xl) var(--container-padding) var(--space-3xl);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-3xl);
}

.footer-section h4 {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--white);
  margin-bottom: var(--space-lg);
}

.footer-section p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.9;
}

.footer-section p a {
  color: var(--gray-400);
  transition: color var(--transition-base);
}

.footer-section p a:hover {
  color: var(--white);
  opacity: 1;
}

.footer-bottom {
  border-top: var(--border-subtle);
  padding: var(--space-lg) var(--container-padding);
  text-align: center;
}

.footer-bottom p {
  color: var(--gray-600);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

/* =============================================
   Back to Top Button
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  background: var(--gray-800);
  border: var(--border-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--gray-700);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: var(--white);
  stroke-width: 2;
  fill: none;
}

/* =============================================
   Animations
   ============================================= */
.fade-in-up {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Staggered animation for grid children */
.feature-grid .feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-grid .feature-card:nth-child(3) { transition-delay: 0.2s; }

.portfolio-grid .portfolio-card:nth-child(2) { transition-delay: 0.05s; }
.portfolio-grid .portfolio-card:nth-child(3) { transition-delay: 0.1s; }
.portfolio-grid .portfolio-card:nth-child(4) { transition-delay: 0.15s; }
.portfolio-grid .portfolio-card:nth-child(5) { transition-delay: 0.2s; }
.portfolio-grid .portfolio-card:nth-child(6) { transition-delay: 0.25s; }

/* =============================================
   Noise Overlay (Texture)
   ============================================= */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.4;
}

/* =============================================
   Grid Lines Background (Decorative, Animated)
   ============================================= */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
  animation: gridPan 32s linear infinite;
}

@keyframes gridPan {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 80px 80px, 80px 80px;
  }
}

/* Keep page content above the animated grid */
.countdown-wrap,
.site-footer {
  position: relative;
  z-index: 1;
}

/* =============================================
   Binary Background Row (Decorative, Animated)
   All sequences on one row, scrolling right to left
   ============================================= */
.binary-bg {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto var(--space-xl);
  overflow: hidden;
  pointer-events: none;
  user-select: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.binary-row.binary-ticker {
  display: block;
  width: 100%;
  overflow: hidden;
}

.binary-track {
  display: flex;
  width: max-content;
  animation: tickerScroll 40s linear infinite;
}

.binary-track span {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: clamp(0.9rem, 2vw, 1.25rem);
  letter-spacing: 0.45em;
  text-indent: 0.45em;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.012);
  padding: 0.85rem 1.4rem;
  margin-right: var(--space-md);
  border-radius: var(--radius-md);
}

/* Keep countdown text/boxes above the background grid */
.countdown-eyebrow,
.countdown-wrap .head-text,
.countdown-grid {
  position: relative;
  z-index: 1;
}

@keyframes tickerScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  body::before {
    animation: none;
  }
  .binary-track {
    animation: none;
  }
}

/* =============================================
   Responsive Design
   ============================================= */
@media (max-width: 992px) {
  .nav-right {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: rgba(10, 10, 10, 0.98);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2xl);
    transition: right var(--transition-slow);
    z-index: 1000;
  }

  .nav-right.active {
    right: 0;
  }

  .nav-right a {
    font-size: 1.25rem;
    color: var(--gray-300);
  }

  .nav-right a:hover,
  .nav-right a.active {
    color: var(--white);
  }

  .nav-dropdown {
    flex-direction: column;
    align-items: center;
  }

  .nav-dropdown-toggle {
    font-size: 1.25rem;
    color: var(--gray-300);
  }

  .nav-dropdown-toggle:hover,
  .nav-dropdown.open .nav-dropdown-toggle {
    color: var(--white);
  }

  .nav-dropdown-menu {
    position: static;
    display: none;
    min-width: 0;
    margin-top: var(--space-sm);
    padding: 0;
    background: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border: none;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    align-items: center;
  }

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

  .nav-dropdown-menu a {
    font-size: 1rem;
    color: var(--gray-300);
    padding: var(--space-xs) var(--space-sm);
  }

  .nav-dropdown-menu a:hover {
    color: var(--white);
  }

  .hamburger {
    display: block;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

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

  .col-sm-8 {
    padding: var(--space-3xl) var(--container-padding);
  }

  .research-item {
    padding: var(--space-lg);
    gap: var(--space-md);
  }

  blockquote {
    padding: var(--space-xl) var(--space-xl) var(--space-xl) var(--space-2xl);
  }

  blockquote::before {
    font-size: 3rem;
    left: var(--space-md);
    top: var(--space-md);
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .back-to-top {
    bottom: 1.5rem;
    right: 1.5rem;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .head-text {
    font-size: 2.25rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .feature-card {
    padding: var(--space-xl);
  }

  .portfolio-card img {
    height: 180px;
  }
}

/* =============================================
   Print Styles
   ============================================= */
@media print {
  nav, .back-to-top, .scroll-progress, .page-loader {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  body::before, body::after {
    display: none;
  }
}