/* ============================================
   Praxnov - Corporate Website Styles
   Deep Forest Green + Warm Orange Accent
   ============================================ */

:root {
  /* Primary palette */
  --color-primary: #1B4332;
  --color-primary-dark: #0F2A1F;
  --color-primary-light: #2D6A4F;
  --color-primary-mid: #24533D;

  /* Accent */
  --color-accent: #E8913E;
  --color-accent-hover: #D67F2C;
  --color-accent-light: #F5C899;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-off-white: #F8F9FA;
  --color-gray-50: #F5F6F7;
  --color-gray-100: #E9ECEF;
  --color-gray-200: #DEE2E6;
  --color-gray-300: #CED4DA;
  --color-gray-400: #ADB5BD;
  --color-gray-500: #6C757D;
  --color-gray-600: #495057;
  --color-gray-700: #343A40;
  --color-gray-800: #212529;
  --color-gray-900: #1A1D21;

  /* Typography */
  --font-display: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Effects */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  margin-bottom: 1rem;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-dark:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-primary);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.navbar.scrolled {
  background-color: rgba(27, 67, 50, 0.98);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo img {
  height: 48px;
  width: auto;
  display: block;
}
  width: 38px;
  height: 38px;
  background-color: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-logo-mark svg {
  width: 22px;
  height: 22px;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.nav-logo-sub {
  font-size: 0.7rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 2px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.nav-links a {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 1px;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-cta .btn {
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 100px;
  padding: 3px;
  gap: 2px;
}

.lang-switcher button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.375rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  border-radius: 100px;
  transition: var(--transition);
  letter-spacing: 0.03em;
  line-height: 1;
}

.lang-switcher button:hover {
  color: var(--color-white);
}

.lang-switcher button.active {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition);
  border-radius: 1px;
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
    rgba(27, 67, 50, 0.92) 0%,
    rgba(15, 42, 31, 0.85) 50%,
    rgba(27, 67, 50, 0.8) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: var(--space-xl) 0;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: rgba(232, 145, 62, 0.15);
  border: 1px solid rgba(232, 145, 62, 0.3);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent-light);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
  font-weight: 700;
}

.hero h1 span {
  color: var(--color-accent);
}

.hero-slogan {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  font-style: italic;
  color: var(--color-accent-light);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.hero-slogan span {
  color: var(--color-accent);
  margin: 0 0.375rem;
  font-style: normal;
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-lg);
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.hero-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
}

/* ============================================
   Section Base
   ============================================ */
.section {
  padding: var(--space-3xl) 0;
}

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

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-2xl);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
}

.section-dark {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

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

.section-dark .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

.section-gray {
  background-color: var(--color-gray-50);
}

/* ============================================
   About / Intro Section (Homepage)
   ============================================ */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.intro-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background-color: #f0f0f0;
}

.intro-image::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 16px;
  right: -16px;
  bottom: -16px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.intro-content h2 {
  margin-bottom: var(--space-md);
}

.intro-content > p {
  font-size: 1.0625rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

.intro-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.intro-feature {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.intro-feature-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background-color: rgba(27, 67, 50, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.intro-feature h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
  color: var(--color-gray-800);
}

.intro-feature p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.5;
}

.intro-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-md);
}

.intro-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition);
}

.intro-badge:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.intro-badge svg {
  width: 16px;
  height: 16px;
}

/* ============================================
   Advantages Section
   ============================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.advantage-card {
  background-color: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--color-gray-100);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background-color: rgba(27, 67, 50, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.advantage-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.advantage-card p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ============================================
   Products Section (Homepage cards)
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.product-card-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: 0.375rem 0.75rem;
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.product-badge.soon {
  background-color: var(--color-gray-600);
  color: var(--color-white);
}

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

.product-card-body h3 {
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
}

.product-card-body p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-md);
  flex: 1;
  line-height: 1.6;
}

.product-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.product-card-link:hover {
  color: var(--color-accent);
  gap: 0.625rem;
}

/* ============================================
   Product Highlight (Homepage)
   ============================================ */
.product-highlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.product-highlight-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-highlight-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background-color: #f0f0f0;
}

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

.highlight-features li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.hf-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.highlight-features h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--color-gray-800);
}

.highlight-features p {
  font-size: 0.9375rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ============================================
   Video Embed (YouTube)
   ============================================ */
.video-embed-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.video-embed {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================
   Video Section (legacy placeholder)
   ============================================ */
.video-placeholder {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  max-width: 900px;
  margin: 0 auto;
}

.video-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.video-play-btn {
  position: relative;
  z-index: 1;
  width: 80px;
  height: 80px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  transition: var(--transition);
}

.video-placeholder:hover .video-play-btn {
  transform: scale(1.1);
  box-shadow: 0 0 0 12px rgba(232, 145, 62, 0.2);
}

.video-play-btn svg {
  width: 28px;
  height: 28px;
  margin-left: 4px;
  color: var(--color-primary-dark);
}

.video-label {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 0.25rem;
}

.video-sub {
  position: relative;
  z-index: 1;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
  text-align: center;
}

.cta-section h2 {
  color: var(--color-white);
  max-width: 600px;
  margin: 0 auto var(--space-md);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.75);
  max-width: 540px;
  margin: 0 auto var(--space-lg);
  font-size: 1.0625rem;
}

/* ============================================
   Product Page - Full Layout
   ============================================ */
.product-full {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.product-full-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-full-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background-color: #f0f0f0;
}

.product-full-content .section-eyebrow {
  margin-bottom: var(--space-sm);
}

.product-full-content h2 {
  margin-bottom: var(--space-md);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.product-full-lead {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-gray-700);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.product-full-content p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-gray-600);
  margin-bottom: var(--space-md);
}

/* Features 3-col */
.features-three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

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

.feature-col {
  background-color: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
}

.feature-col:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.feature-col-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-md);
  background-color: rgba(27, 67, 50, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: var(--transition);
}

.feature-col:hover .feature-col-icon {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.feature-col h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.feature-col p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.6;
}

/* Applications grid */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.app-card {
  background-color: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
}

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

.app-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-sm);
  background-color: rgba(232, 145, 62, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.app-card h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.375rem;
}

.app-card p {
  font-size: 0.8125rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .nav-logo img {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  line-height: 1.7;
  margin-top: var(--space-sm);
  margin-bottom: var(--space-md);
  max-width: 320px;
}

.footer h4 {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-md);
  letter-spacing: 0.03em;
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-contact p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 0.625rem;
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  line-height: 1.5;
}

.footer-contact svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.6);
  opacity: 1;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
}

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

.footer-bottom-links a:hover {
  color: var(--color-accent);
}

/* ============================================
   Page Header (sub-pages)
   ============================================ */
.page-header {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
  background-color: var(--color-primary);
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
}

.page-header-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.page-header .section-eyebrow {
  color: var(--color-accent-light);
}

.page-header h1 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.page-header p {
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

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

/* ============================================
   About Page
   ============================================ */
.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-story-content h2 {
  margin-bottom: var(--space-md);
}

.about-story-content p {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-gray-600);
  margin-bottom: var(--space-md);
}

.about-name-origin {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
}

.name-origin-part {
  flex: 1;
}

.name-origin-part .label {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.name-origin-part .meaning {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  background-color: #e8e8e8;
}

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

.info-card {
  padding: var(--space-lg);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-100);
  text-align: center;
}

.info-card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-sm);
  background-color: rgba(27, 67, 50, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.info-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.info-card p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
}

/* Values */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.value-card {
  padding: var(--space-lg);
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.value-card:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.value-card h3 {
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  font-size: 1.125rem;
}

.value-card p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
  line-height: 1.7;
}

/* ============================================
   Products Page
   ============================================ */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  padding: var(--space-2xl) 0;
}

.product-detail:nth-child(even) {
  direction: rtl;
}

.product-detail:nth-child(even) > * {
  direction: ltr;
}

.product-detail-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.product-detail-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.product-detail-content {
  padding: var(--space-lg) 0;
}

.product-detail-content .section-eyebrow {
  margin-bottom: var(--space-sm);
}

.product-detail-content h2 {
  margin-bottom: var(--space-md);
}

.product-detail-content > p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-gray-600);
  margin-bottom: var(--space-md);
}

.product-features-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: var(--space-lg);
}

.product-features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  line-height: 1.5;
}

.product-features-list svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  margin-top: 2px;
}

.product-scenarios {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.scenario-tag {
  padding: 0.375rem 0.875rem;
  background-color: var(--color-gray-100);
  border-radius: 100px;
  font-size: 0.8125rem;
  color: var(--color-gray-600);
}

/* Coming soon overlay */
.coming-soon-badge-large {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background-color: rgba(27, 67, 50, 0.08);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================================
   Patents Page
   ============================================ */
.patents-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.patent-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  border: 1px solid var(--color-gray-100);
  transition: var(--transition);
}

.patent-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.patent-status {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.patent-status.granted {
  background-color: rgba(27, 67, 50, 0.1);
  color: var(--color-primary);
}

.patent-status.pending {
  background-color: rgba(232, 145, 62, 0.15);
  color: var(--color-accent);
}

.patent-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.patent-card p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.patent-meta {
  display: flex;
  gap: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-gray-100);
  font-size: 0.8125rem;
  color: var(--color-gray-400);
}

.quality-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.quality-item {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.quality-item-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: rgba(232, 145, 62, 0.15);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.quality-item h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
  color: var(--color-gray-800);
}

.quality-item p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ============================================
   Video Gallery Page
   ============================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.video-card {
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-mid));
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
}

.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 30px 30px;
}

.video-thumb-play {
  position: relative;
  z-index: 1;
  width: 64px;
  height: 64px;
  background-color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.video-card:hover .video-thumb-play {
  transform: scale(1.1);
  box-shadow: 0 0 0 10px rgba(232, 145, 62, 0.2);
}

.video-thumb-play svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
  color: var(--color-primary-dark);
}

.video-duration {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  z-index: 1;
  padding: 0.25rem 0.625rem;
  background-color: rgba(0, 0, 0, 0.6);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-white);
  font-family: var(--font-display);
}

.video-card-body {
  padding: var(--space-md);
}

.video-card-body h3 {
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.video-card-body p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
}

.video-cat {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-family: var(--font-display);
}

/* ============================================
   Contact Page
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-2xl);
}

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

.contact-info > p {
  font-size: 1rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
  line-height: 1.7;
}

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

.contact-method {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background-color: var(--color-gray-50);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.contact-method:hover {
  background-color: rgba(27, 67, 50, 0.05);
}

.contact-method-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.contact-method h4 {
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.contact-method p {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-bottom: 0;
}

.contact-form-wrap {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-gray-100);
}

.contact-form-wrap h3 {
  margin-bottom: var(--space-md);
}

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

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 67, 50, 0.1);
}

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

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

.form-group .required {
  color: var(--color-accent);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .info-cards {
    grid-template-columns: 1fr;
  }

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

  .product-highlight,
  .product-full {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --space-3xl: 4rem;
    --space-2xl: 3rem;
    --space-xl: 2.5rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-primary-dark);
    padding: var(--space-md);
    gap: 0;
  }

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

  .nav-links a {
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
  }

  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .intro-grid,
  .about-story,
  .product-detail,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .product-detail:nth-child(even) {
    direction: ltr;
  }

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

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

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

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

  .quality-list {
    grid-template-columns: 1fr;
  }

  .intro-features {
    grid-template-columns: 1fr;
  }

  .features-three-col {
    grid-template-columns: 1fr;
  }

  .features-four-col {
    grid-template-columns: 1fr 1fr;
  }

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

  .hero-slogan {
    font-size: 1.375rem;
  }

  .intro-badge-row {
    gap: 0.5rem;
  }

  .intro-badge {
    font-size: 0.8125rem;
    padding: 0.4rem 0.875rem;
  }

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

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

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}