@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700&display=swap');

:root {
  --canvas: #000000;
  --surface-soft: #0d0d0d;
  --surface-card: #1a1a1a;
  --surface-elevated: #262626;
  --carbon-gray: #2b2b2b;
  --hairline: #3c3c3c;
  --on-dark: #ffffff;
  --body: #bbbbbb;
  --body-strong: #e6e6e6;
  --muted: #7e7e7e;
  --m-blue-light: #0066b1;
  --m-blue-dark: #1c69d4;
  --m-red: #e22718;
  --warning: #f4b400;
  --success: #0fa336;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--canvas);
  color: var(--body);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 300;
  font-size: 16px;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--on-dark);
  font-weight: 700;
  letter-spacing: 0;
  margin-top: 0;
}

h1 { font-size: clamp(2.5rem, 5vw, 5rem); line-height: 1.0; text-transform: uppercase; }
h2 { font-size: clamp(1.75rem, 3.5vw, 3.5rem); line-height: 1.05; text-transform: uppercase; }
h3 { font-size: clamp(1.25rem, 2.5vw, 2.5rem); line-height: 1.1; text-transform: uppercase; }
h4 { font-size: 1.25rem; line-height: 1.3; font-weight: 700; }
h5 { font-size: 1rem; line-height: 1.3; font-weight: 700; }

p { color: var(--body); font-weight: 300; line-height: 1.6; margin-bottom: 1rem; }
p.lead { color: var(--body-strong); font-size: 1.125rem; font-weight: 300; }

a { color: var(--on-dark); text-decoration: none; }
a:hover { color: var(--on-dark); opacity: 0.8; }

.text-muted-dark { color: var(--muted); }
.text-body-dark { color: var(--body); }
.text-strong { color: var(--body-strong); }

.m-stripe {
  height: 4px;
  background: linear-gradient(to right, var(--m-blue-light) 33.3%, var(--m-blue-dark) 33.3% 66.6%, var(--m-red) 66.6%);
  width: 100%;
  display: block;
}

.top-nav {
  background-color: var(--canvas);
  border-bottom: 1px solid var(--hairline);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
}

.top-nav .navbar-brand {
  color: var(--on-dark);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.top-nav .navbar-brand .brand-sub {
  font-size: 0.625rem;
  font-weight: 300;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
}

.top-nav .nav-link {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.5px;
  padding: 0.5rem 0.75rem;
  transition: color 0.2s;
}

.top-nav .nav-link:hover,
.top-nav .nav-link.active {
  color: var(--on-dark);
}

.navbar-toggler {
  border: 1px solid var(--hairline);
  border-radius: 0;
  padding: 0.4rem 0.7rem;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255,255,255,0.8)' stroke-linecap='square' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--canvas);
  z-index: 999;
  padding: 2rem;
}

.mobile-menu-overlay.open {
  display: block;
}

.mobile-menu-overlay .m-stripe {
  margin-bottom: 2rem;
}

.mobile-menu-overlay a {
  display: block;
  color: var(--on-dark);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--hairline);
}

.mobile-menu-overlay a:hover { opacity: 0.7; }

.page-wrapper {
  padding-top: 64px;
}

.hero-band {
  position: relative;
  background-color: var(--canvas);
  min-height: 480px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-band .hero-img {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.35;
}

.hero-band .hero-content {
  position: relative;
  z-index: 2;
  padding: 64px 0;
  width: 100%;
}

.hero-band .hero-tag {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
  display: block;
}

.hero-band h1 {
  margin-bottom: 1.5rem;
}

.hero-band .hero-desc {
  color: var(--body-strong);
  font-size: 1.125rem;
  max-width: 640px;
}

.btn-nw-outline {
  background: transparent;
  border: 1px solid var(--on-dark);
  color: var(--on-dark);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.75rem 2rem;
  border-radius: 0;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  display: inline-block;
  line-height: 1;
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-nw-outline:hover {
  background: var(--on-dark);
  color: var(--canvas);
  text-decoration: none;
}

.btn-nw-dark {
  background: var(--canvas);
  border: 1px solid var(--hairline);
  color: var(--body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.75rem 2rem;
  border-radius: 0;
  transition: border-color 0.2s, color 0.2s;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
}

.btn-nw-dark:hover {
  border-color: var(--on-dark);
  color: var(--on-dark);
  text-decoration: none;
}

.section-band {
  padding: 96px 0;
  border-bottom: 1px solid var(--hairline);
}

.section-band-sm {
  padding: 48px 0;
  border-bottom: 1px solid var(--hairline);
}

.section-label {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1.5rem;
  display: block;
}

.card-nw {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 0;
  padding: 24px;
  height: 100%;
  transition: border-color 0.2s;
}

.card-nw:hover {
  border-color: var(--on-dark);
}

.card-nw .card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
  display: block;
}

.card-nw h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.card-nw p {
  font-size: 0.9375rem;
  margin-bottom: 1.25rem;
}

.card-nw a.card-link {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--on-dark);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.card-nw a.card-link::after {
  content: '→';
}

.card-nw a.card-link:hover { opacity: 0.7; }

.card-nw .card-img-top {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
  margin-bottom: 1rem;
  display: block;
}

.photo-band {
  position: relative;
  min-height: 340px;
  overflow: hidden;
  background-color: var(--surface-soft);
}

.photo-band img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
  opacity: 0.4;
  display: block;
}

.photo-band-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 2;
  width: 90%;
  max-width: 700px;
}

.faq-accordion .faq-item {
  border-bottom: 1px solid var(--hairline);
}

.faq-accordion .faq-question {
  background: transparent;
  border: none;
  color: var(--on-dark);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.5px;
  padding: 1.25rem 0;
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: opacity 0.2s;
}

.faq-accordion .faq-question:hover { opacity: 0.75; }

.faq-accordion .faq-question .faq-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--muted);
  transition: transform 0.3s;
  line-height: 1;
}

.faq-accordion .faq-question.active .faq-icon {
  transform: rotate(45deg);
  color: var(--on-dark);
}

.faq-accordion .faq-answer {
  display: none;
  padding-bottom: 1.25rem;
}

.faq-accordion .faq-answer.open {
  display: block;
}

.faq-accordion .faq-answer p {
  color: var(--body);
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
}

.faq-accordion .faq-answer p:last-child { margin-bottom: 0; }

.breadcrumb-nw {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 2rem;
}

.breadcrumb-nw a {
  font-size: 0.8125rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 400;
}

.breadcrumb-nw a:hover { color: var(--on-dark); }

.breadcrumb-nw .bc-sep {
  color: var(--hairline);
  font-size: 0.8125rem;
}

.breadcrumb-nw .bc-current {
  font-size: 0.8125rem;
  color: var(--on-dark);
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.toc-block {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 4px solid var(--m-blue-light);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.toc-block .toc-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.toc-block ol {
  margin: 0;
  padding-left: 1.25rem;
  list-style: decimal;
}

.toc-block li {
  margin-bottom: 0.5rem;
}

.toc-block a {
  font-size: 0.875rem;
  color: var(--body);
  transition: color 0.2s;
}

.toc-block a:hover { color: var(--on-dark); }

.sidebar-nav {
  position: sticky;
  top: 80px;
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  padding: 1.5rem;
}

.sidebar-nav .sidebar-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.sidebar-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-nav li {
  border-bottom: 1px solid var(--hairline);
}

.sidebar-nav li:last-child { border-bottom: none; }

.sidebar-nav a {
  display: block;
  font-size: 0.8125rem;
  color: var(--body);
  padding: 0.625rem 0;
  transition: color 0.2s;
  font-weight: 400;
}

.sidebar-nav a:hover,
.sidebar-nav a.active { color: var(--on-dark); }

.related-content-block {
  border-top: 1px solid var(--hairline);
  padding-top: 2rem;
  margin-top: 3rem;
}

.related-content-block .section-label {
  margin-bottom: 1.5rem;
}

.article-content h2 {
  font-size: 1.75rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.article-content h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.article-content ul,
.article-content ol {
  color: var(--body);
  font-weight: 300;
  line-height: 1.6;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content .callout {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 4px solid var(--m-blue-dark);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.article-content .callout p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.article-content .callout .callout-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
  display: block;
}

.spec-row {
  border-bottom: 1px solid var(--hairline);
  padding: 1rem 0;
  display: flex;
  gap: 1rem;
}

.spec-row:last-child { border-bottom: none; }

.spec-row .spec-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 160px;
}

.spec-row .spec-value {
  color: var(--body-strong);
  font-weight: 300;
  flex: 1;
}

.site-footer {
  background-color: var(--canvas);
  border-top: 1px solid var(--hairline);
  padding: 64px 0 32px;
}

.site-footer .footer-logo {
  color: var(--on-dark);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.site-footer .footer-logo .brand-sub {
  font-size: 0.625rem;
  font-weight: 300;
  letter-spacing: 3px;
  color: var(--muted);
  text-transform: uppercase;
  display: block;
  margin-top: 2px;
}

.site-footer .footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--on-dark);
  margin-bottom: 1rem;
}

.site-footer .footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer .footer-links li {
  margin-bottom: 0.5rem;
}

.site-footer .footer-links a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.2s;
}

.site-footer .footer-links a:hover { color: var(--on-dark); }

.site-footer .footer-disclaimer {
  font-size: 0.8125rem;
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 1rem;
  font-weight: 300;
}

.site-footer .footer-bottom {
  border-top: 1px solid var(--hairline);
  margin-top: 2rem;
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer .footer-bottom .copyright {
  font-size: 0.8125rem;
  color: var(--muted);
}

.site-footer .footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer .footer-legal-links a {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.site-footer .footer-legal-links a:hover { color: var(--on-dark); }

.cookie-banner {
  display: none;
  position: fixed;
  bottom: 16px;
  left: 0;
  right: 0;
  margin-left: auto;
  margin-right: auto;
  max-width: 560px;
  z-index: 9999;
  background-color: var(--canvas);
  border: 1px solid var(--hairline);
  padding: 1.5rem;
}

.cookie-banner.visible {
  display: block;
}

.cookie-banner p {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--body);
  margin-bottom: 1rem;
}

.cookie-banner .cookie-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.form-nw .form-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.form-nw .form-control {
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 0;
  color: var(--on-dark);
  font-size: 1rem;
  font-weight: 300;
  padding: 0.75rem 1rem;
  height: 48px;
  transition: border-color 0.2s;
}

.form-nw textarea.form-control {
  height: auto;
  min-height: 120px;
}

.form-nw .form-control:focus {
  background-color: var(--surface-card);
  border-color: var(--on-dark);
  color: var(--on-dark);
  box-shadow: none;
  outline: none;
}

.form-nw .form-control::placeholder {
  color: var(--muted);
}

.form-success {
  display: none;
  background-color: var(--surface-card);
  border: 1px solid var(--hairline);
  border-left: 4px solid var(--success);
  padding: 1.25rem 1.5rem;
  font-size: 0.9375rem;
  color: var(--body-strong);
}

.form-success.visible {
  display: block;
}

.page-inner {
  padding: 48px 0 96px;
}

.page-inner .content-col {
  padding-right: 2rem;
}

.intro-lead {
  font-size: 1.125rem;
  color: var(--body-strong);
  font-weight: 300;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.step-list {
  counter-reset: step-counter;
  list-style: none;
  padding: 0;
  margin: 0;
}

.step-list li {
  counter-increment: step-counter;
  display: flex;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--body);
  font-weight: 300;
}

.step-list li::before {
  content: counter(step-counter);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--on-dark);
  margin-top: 2px;
}

.highlight-box {
  background-color: var(--surface-soft);
  border: 1px solid var(--hairline);
  padding: 2rem;
  margin: 2rem 0;
}

.highlight-box h4 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.highlight-box ul {
  color: var(--body);
  font-weight: 300;
  padding-left: 1.25rem;
}

.highlight-box li { margin-bottom: 0.5rem; }

@media (max-width: 767.98px) {
  .section-band { padding: 56px 0; }
  .section-band-sm { padding: 32px 0; }
  .hero-band { min-height: 360px; }
  .hero-band .hero-content { padding: 48px 0; }
  .page-inner .content-col { padding-right: 0; }
  .spec-row { flex-direction: column; gap: 0.25rem; }
  .spec-row .spec-label { min-width: unset; }
  .site-footer { padding: 48px 0 24px; }
  .site-footer .footer-bottom { flex-direction: column; }
}

@media (min-width: 768px) and (max-width: 1023.98px) {
  .section-band { padding: 72px 0; }
}