/* ============================================
   SECARA Website v2 — Design System & Styles
   ============================================ */

/* --- Local Font (Inter) --- */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(assets/fonts/inter.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(assets/fonts/inter.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(assets/fonts/inter.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(assets/fonts/inter.woff2) format('woff2');
}

/* --- Custom Properties --- */
:root {
  --color-dark: #0a0f1a;
  --color-dark-2: #111827;
  --color-dark-3: #1a2332;
  --color-blue: #095FA8;
  --color-blue-light: #ffffff;
  --color-blue-pale: #B9D6ED;
  --color-gold: #F9A825;
  --color-white: #ffffff;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;

  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --space-4xl: 8rem;
  --space-5xl: 10rem;

  --max-width: 1280px;
  --nav-height: 72px;

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-white);
  background-color: var(--color-dark);
  background-image: url('assets/images/background_grey.jpg');
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* --- Typography --- */
.label {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-blue-light);
  margin-bottom: var(--space-md);
  display: block;
}

.section-light .label {
  color: var(--color-dark);
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

p {
  font-size: 1.1875rem;
  line-height: 1.75;
  color: var(--color-gray-400);
}

.section-light p {
  color: var(--color-gray-600);
}

.text-large {
  font-size: 1.375rem;
  line-height: 1.65;
}

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

/* --- Sections with texture overlay --- */
section {
  padding: var(--space-3xl) 0;
  position: relative;
}

/* Dark overlay sections (dark tinted over the grey texture bg) */
.section-dark {
  color: var(--color-white);
}

.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 26, 0.88);
  z-index: 0;
}

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

/* Light overlay sections */
.section-light {
  color: var(--color-dark);
}

.section-light::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(243, 244, 246, 0.93);
  z-index: 0;
}

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

.section-light h2,
.section-light h3,
.section-light h4 {
  color: var(--color-dark);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 120px;
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base), backdrop-filter var(--transition-base), height var(--transition-base);
}

.nav.scrolled {
  height: var(--nav-height);
  background-color: rgba(10, 15, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo img {
  height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: height var(--transition-base);
}

.nav.scrolled .nav-logo img {
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: space-evenly;
  list-style: none;
  margin-left: var(--space-lg);
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

.nav-cta {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #0a0f1a !important;
  background: var(--color-white);
  padding: 0.625rem 1.5rem;
  border-radius: 6px;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
  background: #e0e0e0;
  transform: translateY(-1px);
}

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

.nav-linkedin svg {
  width: 22px;
  height: 22px;
  fill: var(--color-white);
  transition: opacity var(--transition-fast);
  opacity: 0.7;
}

.nav-linkedin:hover svg {
  opacity: 1;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: var(--space-xs);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  margin: 5px 0;
  transition: var(--transition-base);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 0.875rem 2rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-white);
  color: #0a0f1a;
  font-weight: 600;
}

.btn-primary:hover {
  background: #e0e0e0;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
}

.btn-arrow::after {
  content: '\2192';
  transition: transform var(--transition-fast);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* --- Hero --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 26, 0.85);
  z-index: 0;
}

.hero > .container {
  position: relative;
  z-index: 1;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: var(--space-2xl);
}

.hero-polymer-tags {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.polymer-tag {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(4px);
}

.hero h1 {
  margin-bottom: var(--space-lg);
}

.hero p {
  font-size: 1.375rem;
  color: var(--color-gray-400);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-width: 0;
  padding-top: calc(var(--space-3xl) + 3.5rem);
}

.crystal-circle {
  width: 400px;
  max-width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(127, 180, 225, 0.2);
  box-shadow: 0 0 80px rgba(9, 95, 168, 0.15), inset 0 0 60px rgba(0, 0, 0, 0.3);
}

.crystal-circle video,
.crystal-circle > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.12) translateY(5%);
  transform-origin: center center;
}

/* Hero fade-over (reuses solution pattern) */
.crystal-circle {
  position: relative;
}

.crystal-circle .waste-layer {
  position: absolute;
  inset: 0;
  transition: opacity 1.2s ease;
}

.crystal-circle .waste-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.crystal-circle .crystal-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.crystal-circle .crystal-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.crystal-circle.transformed .waste-layer {
  opacity: 0;
}

.crystal-circle.transformed .crystal-layer {
  opacity: 1;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-gray-500);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: float 2s ease-in-out infinite;
  z-index: 1;
}

.scroll-indicator svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-gray-500);
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Challenge Cards (with image backgrounds) --- */
.challenge-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  padding: var(--space-xl);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: all var(--transition-base);
}

.challenge-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.challenge-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: none;
  z-index: 0;
  transition: filter var(--transition-base);
}

.challenge-card:hover .challenge-card-bg {
  filter: none;
}

.challenge-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 15, 26, 0.75) 25%, rgba(10, 15, 26, 0.25) 100%);
  z-index: 1;
}

.challenge-card-content {
  position: relative;
  z-index: 2;
}

.challenge-card-content .stat-icon {
  color: var(--color-blue-light);
  background: rgba(9, 95, 168, 0.2);
  margin-bottom: var(--space-sm);
}

.challenge-card-content .stat-number {
  color: var(--color-blue-light);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  line-height: 1;
}

.challenge-card-content h4 {
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.challenge-card-content p {
  color: var(--color-gray-300);
  font-size: 0.9375rem;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.challenge-card:hover .challenge-card-content p {
  max-height: 200px;
  opacity: 1;
  margin-top: var(--space-xs);
}

/* --- Stat Cards --- */
.stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(127, 180, 225, 0.2);
  transform: translateY(-4px);
}

.section-light .stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.section-light .stat-card:hover {
  border-color: var(--color-blue-light);
  box-shadow: 0 8px 24px rgba(9, 95, 168, 0.08);
}

.stat-icon {
  width: 48px;
  height: 48px;
  background: rgba(9, 95, 168, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-blue-light);
}

.section-light .stat-icon {
  color: var(--color-dark);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-blue-light);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.section-light .stat-number {
  color: var(--color-dark);
}

.stat-card h4 {
  margin-bottom: var(--space-xs);
}

.stat-card p {
  font-size: 0.9375rem;
}

/* --- Solution Section --- */

/* 5a. Fade-over visual */
.solution-visual-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.solution-circle-wrapper {
  display: flex;
  justify-content: center;
}

.solution-circle {
  width: 360px;
  height: 360px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 60px rgba(9, 95, 168, 0.1);
}

.solution-circle .waste-layer {
  position: absolute;
  inset: 0;
  transition: opacity 1.2s ease;
}

.solution-circle .waste-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-circle .crystal-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.solution-circle .crystal-layer video,
.solution-circle .crystal-layer img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-circle.transformed .waste-layer {
  opacity: 0;
}

.solution-circle.transformed .crystal-layer {
  opacity: 1;
}

.solution-text h2 {
  margin-bottom: var(--space-md);
}

.solution-text p {
  margin-bottom: var(--space-md);
}

.solution-bullets {
  list-style: none;
  margin-top: var(--space-md);
}

.solution-bullets li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: 0.5rem 0;
  font-size: 0.9375rem;
  color: var(--color-gray-300);
}

.solution-bullets li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-blue-light);
  border-radius: 50%;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

/* 5b. Glass fiber sub-section */
.glass-fiber-section {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding: var(--space-3xl) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.glass-fiber-visual {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(127, 180, 225, 0.2);
  box-shadow: 0 0 40px rgba(9, 95, 168, 0.1);
}

.glass-fiber-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.glass-fiber-text h3 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.glass-fiber-text p {
  margin-bottom: var(--space-sm);
}

/* 5c. Feedstock streams grid */
.feedstock-section {
  margin-top: var(--space-3xl);
}

.feedstock-section h3 {
  color: var(--color-white);
  margin-bottom: var(--space-2xl);
}

.waste-stream-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.waste-stream-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-md);
  cursor: pointer;
}

.waste-stream-circle {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 2px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-base);
}

.waste-stream-circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.waste-stream-row:hover .waste-stream-circle {
  border-color: var(--color-white);
  transform: scale(1.05);
}

.waste-stream-text {
  flex: 1;
  min-width: 0;
}

.waste-stream-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0;
  transition: color var(--transition-fast);
}

.waste-stream-desc {
  font-size: 0.95rem;
  color: var(--color-gray-400);
  line-height: 1.6;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.waste-stream-row:hover .waste-stream-desc {
  max-height: 200px;
  opacity: 1;
  margin-top: var(--space-sm);
}

/* --- Benefits Grid --- */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-3xl);
}

.benefit-item {
  text-align: center;
  padding: var(--space-lg);
}

.benefit-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  background: rgba(9, 95, 168, 0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue-light);
  font-size: 1.5rem;
}

.benefit-item h4 {
  color: var(--color-white);
  margin-bottom: var(--space-xs);
}

.benefit-item p {
  font-size: 0.875rem;
}

/* --- Technology Section --- */
.tech-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  margin-top: var(--space-2xl);
}

.tech-image {
  border-radius: 12px;
  overflow: hidden;
}

.tech-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

.tech-features-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.tech-feature-list {
  list-style: none;
}

.tech-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: 0.9375rem;
  color: var(--color-dark);
}

.tech-feature-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-dark);
  border-radius: 50%;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

/* --- For Automotive Section --- */
.automotive-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.automotive-text h2 {
  margin-bottom: var(--space-md);
}

.automotive-text > p {
  margin-bottom: var(--space-lg);
}

.automotive-bullets {
  list-style: none;
}

.automotive-bullets li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: 0.625rem 0;
  font-size: 0.9375rem;
  color: var(--color-white);
}

.automotive-bullets li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-white);
  border-radius: 50%;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

.automotive-cta {
  margin-top: var(--space-lg);
}

.automotive-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.automotive-stat-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}

.automotive-stat-card:hover {
  border-color: var(--color-gray-400);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
}

.automotive-stat-card .stat-number {
  font-size: 2rem;
  color: var(--color-dark);
}

.automotive-stat-card p {
  font-size: 0.875rem;
  color: var(--color-gray-600);
}

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

.roadmap-card {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.roadmap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.roadmap-card-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.roadmap-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 15, 26, 0.8) 30%, rgba(10, 15, 26, 0.3) 100%);
  z-index: 1;
}

.roadmap-card-content {
  position: relative;
  z-index: 2;
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}

.roadmap-card-top {
  flex-shrink: 0;
}

.roadmap-card-bottom {
  margin-top: auto;
}

.roadmap-card .year {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.roadmap-card h3 {
  margin-bottom: var(--space-xs);
  color: var(--color-white);
}

.roadmap-card .scale {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.roadmap-card .roadmap-desc {
  font-size: 0.9375rem;
  color: var(--color-white);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.3s ease;
}

.roadmap-card:hover .roadmap-desc {
  max-height: 200px;
  opacity: 1;
  margin-top: var(--space-xs);
}

.eu-badge {
  display: inline-block;
  margin-top: var(--space-sm);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.375rem 0.75rem;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

.roadmap-cta-line {
  text-align: center;
  margin-top: var(--space-2xl);
}

.roadmap-cta-line p {
  margin-bottom: var(--space-sm);
}

/* --- Backed By Section --- */
/* --- Backers Band --- */
.backers-band {
  padding: var(--space-xl) 0;
  background: var(--color-white);
  text-align: center;
  overflow: hidden;
}

.backers-band-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-400);
  margin-bottom: var(--space-lg);
  text-align: left;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-lg);
}

.backers-band-track {
  display: flex;
  align-items: center;
  gap: var(--space-3xl);
  animation: scroll-logos 15s linear infinite;
  width: max-content;
}

.backers-band-track img {
  max-height: 80px;
  max-width: 280px;
  width: auto;
  object-fit: contain;
  opacity: 0.7;
  flex-shrink: 0;
}

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

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

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

.team-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--space-md);
  border: 3px solid rgba(127, 180, 225, 0.2);
  transition: all var(--transition-base);
}

.team-card:hover .team-photo {
  border-color: var(--color-blue-light);
  transform: scale(1.05);
}

.team-card h4 {
  color: var(--color-white);
  margin-bottom: 0.125rem;
}

.team-role {
  font-size: 0.875rem;
  color: var(--color-blue-light);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.team-card p {
  font-size: 0.875rem;
  color: var(--color-gray-400);
}

.team-extended {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.team-extended h3 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.advisors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.advisor-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  padding: var(--space-lg);
}

.advisor-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xs);
}

.advisor-photo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(127, 180, 225, 0.15);
  flex-shrink: 0;
}

.advisor-card h4 {
  color: var(--color-white);
}

.advisor-card .advisor-title {
  font-size: 0.8125rem;
  color: var(--color-blue-light);
  margin-bottom: var(--space-xs);
}

.advisor-card p {
  font-size: 0.8125rem;
}

/* --- Team LinkedIn Link --- */
.team-linkedin {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-sm);
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.team-linkedin:hover {
  color: var(--color-white);
  transform: scale(1.1);
}

.team-linkedin svg {
  display: block;
}

/* --- Advisor Company --- */
.advisor-company {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-gray-400);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

/* --- Advisor Experience (legacy, hidden) --- */
.advisor-experience {
  display: none;
  font-size: 0.775rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.45;
  margin-top: 0.3rem;
  font-style: italic;
}

/* --- LinkedIn Posts Section --- */
.linkedin-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin: var(--space-2xl) 0 var(--space-xl);
}

.linkedin-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.linkedin-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.linkedin-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.linkedin-card:hover .linkedin-card-image img {
  transform: scale(1.03);
}

.linkedin-card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex: 1;
}

.linkedin-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

.linkedin-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.linkedin-card-logo {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.15);
  padding: 4px;
  filter: brightness(1.3);
}

.linkedin-card-author {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
}

.linkedin-card-date {
  display: block;
  font-size: 0.8rem;
  color: var(--color-gray-500);
}

.linkedin-card-icon {
  width: 20px;
  height: 20px;
  fill: var(--color-white);
  margin-left: auto;
  flex-shrink: 0;
}

.linkedin-card-text {
  font-size: 0.95rem;
  color: var(--color-gray-300);
  line-height: 1.7;
  flex: 1;
}

.linkedin-card-readmore {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.linkedin-card:hover .linkedin-card-readmore {
  color: var(--color-white);
}
  align-items: stretch;
}


.linkedin-cta {
  text-align: center;
  margin-top: var(--space-xl);
}

.section-intro {
  font-size: 1.125rem;
  color: var(--color-gray-400);
  max-width: 600px;
  margin-top: var(--space-md);
}

/* --- News Section --- */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.news-card {
  display: block;
  position: relative;
  z-index: 2;
  cursor: pointer;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-base);
  text-decoration: none;
}

.news-card:hover {
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.news-card-image {
  height: 200px;
  overflow: hidden;
  background: var(--color-gray-200);
}

.news-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-card-body {
  padding: var(--space-lg);
}

.news-source {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-dark);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.news-card-body h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
  color: var(--color-dark);
  line-height: 1.3;
}

.news-card-body p {
  font-size: 0.875rem;
  margin-bottom: var(--space-md);
}

.news-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap var(--transition-fast);
}

.news-link:hover {
  gap: 0.625rem;
}

.news-update-note {
  text-align: center;
  margin-top: var(--space-xl);
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* --- Contact Section --- */
.contact-section {
  color: var(--color-white);
}

.contact-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 26, 0.88);
  z-index: 0;
}

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

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact-info h2 {
  margin-bottom: var(--space-md);
}

.contact-info > p {
  margin-bottom: var(--space-xl);
}

.contact-social {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.contact-social a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gray-400);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-social a:hover {
  color: var(--color-white);
}

.contact-social svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
  flex-shrink: 0;
}

.contact-email-link {
  color: var(--color-white) !important;
  font-size: 1.5rem !important;
  font-weight: 600 !important;
  margin-bottom: var(--space-sm);
}

.contact-email-link svg {
  width: 40px !important;
  height: 40px !important;
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

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

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-gray-400);
  margin-bottom: 0.375rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-blue-light);
  background: rgba(255, 255, 255, 0.06);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-gray-600);
}

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

/* --- Impressum --- */
.impressum {
  margin-top: var(--space-3xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.impressum h3 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.impressum p {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  line-height: 1.8;
}

.impressum a {
  color: var(--color-blue-light);
  transition: color var(--transition-fast);
}

.impressum a:hover {
  color: var(--color-white);
}

/* --- Footer --- */
.footer {
  padding: var(--space-2xl) 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 18, 0.95);
  z-index: 0;
}

.footer > .container {
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo img {
  height: 24px;
  filter: brightness(0) invert(1);
  opacity: 0.5;
}

.footer p {
  font-size: 0.8125rem;
  color: var(--color-gray-600);
}

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

.footer-links a {
  font-size: 0.8125rem;
  color: var(--color-gray-600);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gray-400);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1200px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(10, 15, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

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

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 1024px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    text-align: center;
  }

  .hero-visual {
    order: -1;
    padding-top: var(--space-sm) !important;
  }

  .hero-content {
    padding-top: 0;
  }

  .crystal-circle {
    width: 300px;
    height: 300px;
  }

  .hero-polymer-tags {
    justify-content: center;
    flex-wrap: wrap;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

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

  .grid-2,
  .solution-visual-container,
  .glass-fiber-section,
  .automotive-content,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

  .glass-fiber-section {
    justify-items: center;
  }

  .grid-3,
  .team-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .glass-fiber-visual {
    width: 220px;
    height: 220px;
  }

  .grid-4,
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .tech-layout {
    grid-template-columns: 1fr;
  }

  .roadmap-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .solution-circle {
    width: 280px;
    height: 280px;
    margin: 0 auto;
  }

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

  .backers-band-track {
    gap: var(--space-2xl);
  }

  .backers-band-track img {
    max-height: 65px;
    max-width: 220px;
  }
}

@media (max-width: 768px) {
  section {
    padding: var(--space-2xl) 0;
  }

  .grid-3,
  .team-grid,
  .advisors-grid,
  .news-grid,
  .grid-4,
  .benefits-grid,
  .linkedin-posts-grid {
    grid-template-columns: 1fr;
  }

  .waste-stream-circle {
    width: 90px;
    height: 90px;
  }

  .waste-stream-list {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .waste-stream-row {
    gap: var(--space-md);
  }

  .waste-stream-desc {
    max-height: none;
    opacity: 1;
    margin-top: var(--space-xs);
  }

  .challenge-card-content p {
    max-height: none;
    opacity: 1;
    margin-top: var(--space-xs);
  }

  .roadmap-card .roadmap-desc {
    max-height: none;
    opacity: 1;
    margin-top: var(--space-xs);
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

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

  .footer-content {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .nav-logo img {
    height: 36px;
  }

  .nav.scrolled .nav-logo img {
    height: 28px;
  }

  .hero-layout {
    gap: var(--space-md);
  }

  .hero-visual {
    padding-top: var(--space-sm) !important;
  }

  .crystal-circle {
    width: 200px;
    height: 200px;
  }

  .polymer-tag {
    font-size: 0.7rem;
    padding: 0.375rem 0.75rem;
  }

  .automotive-stats {
    grid-template-columns: 1fr;
  }

  .backers-band-track {
    gap: var(--space-xl);
    animation-duration: 12s;
  }

  .backers-band-track img {
    max-height: 50px;
    max-width: 180px;
  }
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  z-index: 9999;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner p {
  font-size: 0.8125rem;
  color: var(--color-gray-300);
  margin: 0;
  max-width: 700px;
}

.cookie-banner a {
  color: var(--color-white);
  text-decoration: underline;
}

.cookie-accept {
  background: var(--color-white);
  color: var(--color-dark);
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.cookie-accept:hover {
  opacity: 0.85;
}

@media (max-width: 768px) {
  .cookie-banner {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
    padding: var(--space-sm) var(--space-md);
  }
}