/* Center align badge grid in Performance Highlights */
.badge-grid-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.2rem;
  margin: 0 auto;
  max-width: 900px;
}
/* ========================================
   PREMIUM B2B POLYMER MANUFACTURING WEBSITE
   Design System & Styles
   ======================================== */

/* ========================================
   CSS NAMING CONVENTION (BEM-Inspired)
   ========================================
   Block: .component-name
   Element: .component-name__element
   Modifier: .component-name--modifier
   State: .component-name.active, .is-*
   
   Examples: .card (block), .card-title (element), .card--featured (modifier)
   Utilities: .mt-1, .flex-center (no hierarchy)
   Keep selectors shallow to avoid specificity issues.
   ======================================== */

/* ========================================
   CSS CUSTOM PROPERTIES
   ======================================== */
:root {
  /* Colors */
  --color-primary: #0891b2;        /* Teal - primary accent */
  --color-primary-dark: #0e7490;   /* Deeper teal - hover states */
  --color-primary-light: #06b6d4;  /* Light teal */
  --color-bg-white: #ffffff;
  --color-bg-gray: #f9fafb;
  --color-bg-gray-light: #f3f4f6;
  --color-text-dark: #1f2937;
  --color-text-medium: #4b5563;
  --color-text-light: #6b7280;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;    /* 18px */
  --font-size-xl: 1.25rem;     /* 20px */
  --font-size-2xl: 1.5rem;     /* 24px */
  --font-size-3xl: 1.875rem;   /* 30px */
  --font-size-4xl: 2.25rem;    /* 36px */
  --font-size-5xl: 3rem;       /* 48px */
  
  /* Spacing */
  --spacing-xs: 0.5rem;    /* 8px */
  --spacing-sm: 1rem;      /* 16px */
  --spacing-md: 1.5rem;    /* 24px */
  --spacing-lg: 2rem;      /* 32px */
  --spacing-xl: 3rem;      /* 48px */
  --spacing-2xl: 4rem;     /* 64px */
  --spacing-3xl: 6rem;     /* 96px */
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border Radius */
  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Container */
  --container-max: 1280px;
  --container-padding: 2rem;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg-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: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-dark);
  margin-bottom: 1rem;
}

h1 {
  font-size: var(--font-size-5xl);
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(var(--font-size-2xl), 5vw, var(--font-size-4xl));
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(var(--font-size-xl), 4vw, var(--font-size-3xl));
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: 1rem;
  color: var(--color-text-medium);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-sm {
  font-size: var(--font-size-sm);
}

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

.text-light {
  color: var(--color-text-light);
}

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

.section {
  padding: var(--spacing-3xl) 0;
}

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

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.flex {
  display: flex;
  gap: var(--spacing-md);
}

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

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

.flex-wrap {
  flex-wrap: wrap;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-light);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.navbar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-brand img {
  height: 45px;
  width: auto;
  aspect-ratio: auto;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-medium);
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 2px;
  background-color: var(--color-text-dark);
  transition: all var(--transition-fast);
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
  background-color: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.125rem 2.25rem;
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-size-sm);
}

/* ========================================
   CARDS
   ======================================== */
.card,
.industry-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover,
.industry-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-text-dark);
}

.card-text {
  color: var(--color-text-medium);
  line-height: 1.7;
}

.card-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(8, 145, 178, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: var(--font-size-3xl);
  color: var(--color-primary);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
  padding: 6rem 0 var(--spacing-3xl);
  background: linear-gradient(135deg, #f0fdff 0%, #e0f2fe 100%);
  position: relative;
  overflow: hidden;
  margin-top: 70px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(8, 145, 178, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
  color: var(--color-text-dark);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ========================================
   STATS SECTION
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.stat-card {
  text-align: center;
  padding: var(--spacing-lg);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: var(--font-size-base);
  color: var(--color-text-medium);
}

/* ========================================
   BADGES & CHIPS
   ======================================== */
.badge {
  display: inline-block;
  padding: 10px 20px;
  margin: 6px;
  background-color: rgba(8, 145, 178, 0.08);
  color: var(--color-primary);
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-fast);
  border: 1px solid rgba(8, 145, 178, 0.15);
  box-sizing: border-box;
}

.badge:hover {
  background-color: rgba(8, 145, 178, 0.15);
  border-color: rgba(8, 145, 178, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(8, 145, 178, 0.15);
}

.badge-grid {
  display: flex;
  flex-wrap: wrap;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  max-width: 1400px;
  margin: -6px auto;
  padding: 0 20px;
}

.chip {
  padding: 0.75rem 1.5rem;
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* ========================================
   INDUSTRY ICONS
   ======================================== */
.industry-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-4xl);
  color: white;
}

.industry-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.industry-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ========================================
   TABLES
   ======================================== */
.table-container {
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

thead {
  background-color: var(--color-primary);
  color: white;
}

th {
  padding: var(--spacing-sm);
  text-align: left;
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-medium);
}

tbody tr:hover {
  background-color: var(--color-bg-gray);
}

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

/* ========================================
   FORMS
   ======================================== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-text-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: inherit;
  font-size: var(--font-size-base);
  color: var(--color-text-dark);
  background-color: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

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

/* ========================================
   FORM FEEDBACK MESSAGES
   ======================================== */
.form-feedback {
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  border-radius: var(--radius-md);
  font-weight: 500;
  animation: slideDown 0.3s ease-out;
  border-left: 4px solid;
}

.form-feedback--error {
  background-color: #fee2e2;
  color: #991b1b;
  border-left-color: #dc2626;
}

.form-feedback--success {
  background-color: #dcfce7;
  color: #166534;
  border-left-color: #22c55e;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   CTA SECTIONS
   ======================================== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-radius: var(--radius-xl);
  text-align: center;
  box-shadow: var(--shadow-xl);
}

.cta-banner h2 {
  color: white;
  margin-bottom: 1rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  font-size: var(--font-size-lg);
}

/* ========================================
   FLOATING CTA BUTTON
   ======================================== */
.floating-cta {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  animation: float 3s ease-in-out infinite;
}

/* Hide floating CTA on contact page to prevent form interference */
.contact-form-page .floating-cta {
  display: none;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background-color: var(--color-text-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: white;
  font-size: var(--font-size-lg);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
}

/* ========================================
   TABS
   ======================================== */
.tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  border-bottom: 2px solid var(--color-border-light);
  flex-wrap: wrap;
}

.tab-button {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text-medium);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: color var(--transition-fast);
  position: relative;
  bottom: -2px;
}

.tab-button:hover,
.tab-button.active {
  color: var(--color-primary);
}

.tab-button.active {
  border-bottom-color: var(--color-primary);
}

.tab-content {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

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

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) and (min-width: 769px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --spacing-3xl: 4rem;
    --spacing-2xl: 3rem;
  }
  
  .navbar-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    gap: 0;
  }
  
  .navbar-nav.active {
    display: flex;
  }
  
  .nav-link {
    padding: 0.75rem;
    width: 100%;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero {
    padding: 5rem 0 var(--spacing-2xl);
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  h1 {
    font-size: var(--font-size-4xl);
  }
  
  h2 {
    font-size: var(--font-size-3xl);
  }
  
  .floating-cta {
    bottom: 1rem;
    right: 1rem;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: 0.75rem 1.25rem;
  }
  
  .stat-number {
    font-size: var(--font-size-3xl);
  }
  
  .tabs {
    overflow-x: auto;
  }
  
  .tab-button {
    white-space: nowrap;
  }
  
  /* Contact form: single column on very small phones */
  #contact-form {
    display: block;
  }
  
  #contact-form .form-group {
    margin-bottom: 1.5rem;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.pt-4 { padding-top: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-lg); }

.hidden { display: none; }
.visible { display: block; }

/* ========================================
   PHASE 2: SECTION INTRO & LAYOUT UTILITIES
   ======================================== */
/* Section intro block: centered heading + subtitle with consistent spacing */
.section-intro {
  text-align: center;
}

.section-intro__heading {
  margin-bottom: 0.25rem;
}

.section-intro__subtitle {
  max-width: 800px;
  margin: 1rem auto 0;
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* Variant for wider subtitles (900px instead of 800px) */
.section-intro__subtitle--wide {
  max-width: 900px;
}

/* Application list grid utility */
.grid-list-2col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

/* Flex list with proper alignment */
.list-flex {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

/* Centered flex column */
.flex-center-col {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Utilities for common spacing patterns */
.mx-auto {
  margin-left: auto;
  margin-right: auto;
}

.max-w-800 {
  max-width: 800px;
}

.max-w-900 {
  max-width: 900px;
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.align-start {
  align-items: start;
}

/* Contact form card styling */
.contact-form-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Width utilities */
.w-full {
  width: 100%;
}

/* Applications page styling */
.app-list-item {
  display: flex;
  align-items: start;
  gap: var(--spacing-xs);
}

.app-bullet {
  color: var(--color-primary);
  font-weight: bold;
}

.app-section-header {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.badge-grid--start {
  justify-content: flex-start;
}

/* reCAPTCHA Styling */
.g-recaptcha {
  display: flex;
  justify-content: center;
  margin: var(--spacing-md) 0;
}

@media (max-width: 768px) {
  .g-recaptcha {
    transform: scale(0.9);
    transform-origin: left;
  }
}