/* 
:root {
  --bg-dark: #07111f;
  --bg-dark-2: #0d1b2f;
  --bg-dark-3: #13294b;
  --bg-soft: #f8fbff;
  --bg-soft-2: #eef4ff;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --primary: #2563eb;
  --primary-2: #4f46e5;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --text: #0f172a;
  --muted: #64748b;
  --muted-2: #94a3b8;
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);
  --white-08: rgba(255, 255, 255, 0.08);
  --white-10: rgba(255, 255, 255, 0.10);
  --white-14: rgba(255, 255, 255, 0.14);
  --white-16: rgba(255, 255, 255, 0.16);
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 18px 50px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.16);
  --radius-sm: 14px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --container: 1200px;
  --header-offset: 96px;
} */

:root {

  /* ============================= */
  /* TRACE ANALYSIS COLOR SYSTEM   */
  /* ============================= */

  /* Primary Brand Colors */
  --primary: #27498C;
  --primary-dark: #1C3059;
  --primary-light: #0583F2;

  /* Accent Colors */
  --accent: #54BF8D;
  --accent-soft: #B3F2EC;

  /* Background Colors */
  --bg-dark: #1C3059;
  --bg-dark-2: #27498C;
  --bg-dark-3: #0583F2;

  --bg-soft: #f5f8ff;
  --bg-soft-2: #eef3ff;

  /* Surfaces */
  --surface: #ffffff;
  --surface-2: #f8fafc;

  /* Text Colors */
  --text: #0f172a;
  --muted: #64748b;
  --muted-2: #94a3b8;

  /* Semantic Colors */
  --success: #54BF8D;
  --info: #0583F2;
  --warning: #f59e0b;

  /* Borders */
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);

  /* White Overlays */
  --white-08: rgba(255, 255, 255, 0.08);
  --white-10: rgba(255, 255, 255, 0.10);
  --white-14: rgba(255, 255, 255, 0.14);

  /* Shadows */
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 18px 50px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 30px 80px rgba(15, 23, 42, 0.16);

  /* Radius */
  --radius-sm: 14px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Layout */
  --container: 1200px;
  --header-offset: 96px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
}

section {
  scroll-margin-top: var(--header-offset);
}

.container {
  max-width: var(--container);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 9999;
  background: #fff;
  color: #000;
  padding: 0.8rem 1rem;
  border-radius: 999px;
  box-shadow: var(--shadow-md);
}

.navbar {
  padding: 1rem 0;
  background: transparent;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(16px);
  box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
}

.navbar-brand {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.navbar-brand .text-primary {
  color: var(--primary) !important;
}

.nav-link {
  font-weight: 600;
  color: #334155;
  padding: 0.75rem 1rem !important;
  border-radius: 999px;
  transition: all 0.25s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
}

.navbar-toggler {
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: none;
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.16);
}

.dropdown-menu {
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  padding: 0.5rem;
}

.dropdown-item {
  border-radius: 10px;
  font-weight: 500;
}

.dropdown-item:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
}

.btn {
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: all 0.25s ease;
}

.btn-primary {
    border: none;
  background: linear-gradient(135deg,
      var(--primary-light),
      var(--primary));

  box-shadow: 0 16px 30px rgba(39, 73, 140, 0.25);
}


.btn-primary:hover,
.btn-primary:focus {
  transform: translateY(-1px);
  box-shadow: 0 18px 36px rgba(37, 99, 235, 0.32);
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  color: var(--text);
}

.hero-buttons .btn {
  min-width: 180px;
}

.hero-section {
  position: relative;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at top left, rgba(84, 191, 141, 0.18), transparent 28%),
    radial-gradient(circle at bottom right, rgba(5, 131, 242, 0.24), transparent 34%),
    linear-gradient(135deg,
      var(--bg-dark),
      var(--primary),
      var(--primary-light));
}

.carousel-indicators [data-bs-target] {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.4);
}

.carousel-indicators .active {
    background-color: white;
}

.hero-slide {
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 17, 31, 0.78) 0%, rgba(7, 17, 31, 0.56) 42%, rgba(7, 17, 31, 0.28) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.hero-badge,
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.hero-badge {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #dbeafe;
}

.section-badge {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
}

.badge-light {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.hero-title,
.section-title {
  letter-spacing: -0.04em;
}

.hero-title {
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  line-height: 1.02;
  font-weight: 800;
  margin-bottom: 0.9rem;
}

.hero-title .text-primary {
  background: linear-gradient(135deg, #67e8f9, #93c5fd, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.94);
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 58ch;
  margin-bottom: 0;
}

.hero-actions {
  margin-top: 2rem;
}

.carousel-control-prev,
.carousel-control-next {
  width: 6%;
}

.carousel-indicators [data-bs-target] {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.quick-highlights {
  position: relative;
  z-index: 3;
  margin-top: -2rem;
  padding-bottom: 1rem;
}

.highlight-card,
.feature-item,
.product-card,
.product-box,
.workflow-card,
.health-card,
.resource-card,
.distributor-card,
.contact-form,
.accordion-item,
.modal-content {
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.highlight-card,
.product-card,
.product-box,
.workflow-card,
.health-card,
.resource-card,
.distributor-card,
.contact-form,
.modal-content {
  background: #fff;
  border-radius: var(--radius-lg);
}

.highlight-card {
  display: flex;
  gap: 1rem;
  padding: 1.4rem;
  height: 100%;
}

.icon-wrap,
.feature-icon,
.product-icon,
.workflow-icon,
.health-icon,
.resource-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: linear-gradient(135deg,
      rgba(39, 73, 140, 0.12),
      rgba(84, 191, 141, 0.18));
  color: var(--primary);
}

.icon-wrap,
.feature-icon,
.product-icon,
.resource-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  font-size: 1.25rem;
}

.health-icon {
  width: 60px;
  height: 60px;
  border-radius: 18px;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.feature-icon {
  margin-top: 0.15rem;
}

.workflow-icon {
  position: relative;
  width: 82px;
  height: 82px;
  border-radius: 22px;
  font-size: 1.7rem;
  margin: 0 auto 1.25rem;
}

.workflow-number {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111827;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
}

.section-block {
  padding: 6rem 0;
}

.section-soft,
.workflow-section,
.resources-section,
.faq-section {
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-soft-2) 100%);
}

.features-section,
.health-section {
  background: var(--surface);
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 3rem;
}

.section-heading h2,
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.08;
  margin: 1rem 0 1rem;
}

.section-subtitle,
.section-heading p,
.feature-item p,
.product-card p,
.product-list span,
.workflow-card p,
.workflow-description,
.tech-item span,
.health-card p,
.oxidative-content p,
.resource-list a,
.accordion-body,
.distributor-info p,
.footer-text,
.footer-copy,
.footer-legal,
.form-note {
  color: var(--muted);
}

.features-section .feature-image img,
.technology-section img,
.oxidative-image img {
  border-radius: var(--radius-lg);
}

.feature-list {
  display: grid;
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.3rem;
  border-radius: 22px;
  background: #fff;
}

.feature-item h3,
.feature-item h4,
.product-card h3,
.product-card h5,
.product-box h3,
.workflow-card h3,
.health-card h3,
.resource-card h3,
.faq-column-title,
.distributor-name,
.footer-title,
.modal-title,
.technology-section h3,
.oxidative-content h2 {
  font-weight: 700;
  letter-spacing: -0.03em;
}

.feature-item h3,
.feature-item h4 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.product-card {
  padding: 1.6rem;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover,
.workflow-card:hover,
.health-card:hover,
.resource-card:hover,
.distributor-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.10);
}

.product-box {
  padding: 2rem;
  height: 100%;
}

.product-list,
.element-list,
.footer-links,
.resource-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.product-list li,
.tech-item,
.report-points div,
.cta-points div {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.product-list li+li,
.tech-item+.tech-item,
.resource-list li+li,
.footer-links li+li,
.element-list li+li {
  margin-top: 0.9rem;
}

.product-list i,
.tech-item i,
.report-points i,
.cta-points i,
.oxidative-highlight i {
  color: var(--primary);
  margin-top: 0.2rem;
}

.workflow-card {
  padding: 2rem 1.5rem;
  text-align: center;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.workflow-description {
  font-size: 1.08rem;
}

.technology-section {
  background: linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-soft-2) 100%);
}

.tech-list {
  margin-top: 1.5rem;
}

.health-card {
  padding: 2rem;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.health-highlight {
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.oxidative-section {
  background: #fff;
}

.oxidative-highlight {
  margin-top: 1.5rem;
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 1.3rem;
  border-radius: 18px;
  background: linear-gradient(180deg, var(--bg-soft) 0%, #f1f7ff 100%);
  border: 1px solid var(--border);
}

.resource-card {
  padding: 2rem;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.resource-list a {
  transition: color 0.2s ease;
}

.resource-list a:hover {
  color: var(--primary);
}

.faq-column-title {
  margin-bottom: 1rem;
}

.accordion-item {
  overflow: hidden;
  margin-bottom: 1rem;
  border-radius: 18px;
  background: #fff;
}

.accordion-button {
  font-weight: 700;
  padding: 1.2rem 1.4rem;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
}

.accordion-button:focus {
  box-shadow: none;
}

.accordion-body {
  padding: 1.2rem 1.4rem 1.4rem;
}

.cta-section,
.distributors-section {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #10233d 55%, #1f3b67 100%);
}

.cta-panel {
  border-radius: 34px;
  padding: 3rem;
  color: #fff;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-lg);
}

.cta-panel p,
.cta-panel .form-note,
.cta-panel .section-badge {
  color: rgba(255, 255, 255, 0.82);
}

.cta-points {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  margin-top: 1.4rem;
}

.cta-points div {
  font-weight: 700;
}

.distributor-card {
  background: rgba(255, 255, 255, 0.94);
}

.distributor-name {
  margin-bottom: 1rem;
}

.distributor-info a {
  color: var(--primary);
}

.distributor-info a:hover {
  text-decoration: underline;
}

.distributor-region {
  margin-top: 1rem;
}

.contact-form {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.98);
  color: var(--text);
}

.form-label {
  font-weight: 700;
  color: var(--text);
}

.form-control {
  min-height: 52px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  padding: 0.9rem 1rem;
}

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

.form-control:focus {
  border-color: rgba(37, 99, 235, 0.5);
  box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.12);
}

.form-feedback {
  margin-top: 1rem;
  font-weight: 600;
}

.modal-content {
  border-radius: 24px;
}

.modal-header,
.modal-body {
  padding: 1.25rem 1.5rem;
}

.element-list li {
  position: relative;
  padding-left: 1rem;
}

.element-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
}

.footer-section {
  background: linear-gradient(
    135deg,
    var(--primary-dark),
    var(--primary)
  );
  color: #cbd5e1;
  padding: 4rem 0 2rem;
}

.footer-title {
  color: #fff;
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.footer-links a,
.footer-legal {
  color: #cbd5e1;
  transition: color 0.2s ease;
}

.footer-links a:hover,
.footer-legal:hover {
  color: #fff;
}

.footer-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 2rem 0;
}

.footer-copy {
  color: var(--muted-2);
}

.footer-separator {
  margin: 0 10px;
  color: #64748b;
}

.back-to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 52px;
  height: 52px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff;
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.25s ease;
  z-index: 1000;
}

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

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (max-width: 991.98px) {
  :root {
    --header-offset: 88px;
  }

  .navbar {
    background: rgba(7, 17, 31, 0.86);
    backdrop-filter: blur(18px);
  }

  .navbar-collapse {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-md);
  }

  .hero-section {
    padding-top: 2.75rem;
  }

  .hero-slide::before {
    background: linear-gradient(180deg, rgba(7, 17, 31, 0.78) 0%, rgba(7, 17, 31, 0.64) 100%);
  }

  .carousel-control-prev,
  .carousel-control-next {
    width: 10%;
  }

  .cta-panel {
    padding: 2rem;
  }
}

@media (max-width: 767.98px) {
  :root {
    --header-offset: 82px;
  }

  .section-block {
    padding: 4.5rem 0;
  }

  .quick-highlights {
    margin-top: -1rem;
  }

  .hero-title {
    font-size: clamp(2.2rem, 10vw, 3.2rem);
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

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

  .workflow-card,
  .health-card,
  .resource-card,
  .product-card,
  .product-box,
  .feature-item,
  .cta-panel,
  .contact-form,
  .distributor-card {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .cta-points {
    flex-direction: column;
    gap: 0.7rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}