/* dprk.guru — GoDaddy-inspired NK flag theme */
:root {
  /* NK flag palette */
  --nk-red: #ed1c24;
  --nk-red-dark: #c4181f;
  --nk-blue: #0047a0;
  --nk-blue-dark: #003570;
  --nk-white: #ffffff;
  --nk-stone: #d1d3d4;
  --nk-green: #7fb5a7;

  /* Surfaces */
  --bg-deep: #1a2332;
  --bg-surface: #ffffff;
  --bg-elevated: #f4f5f7;
  --bg-alt: #eef0f3;
  --border: rgba(0, 71, 160, 0.12);
  --border-strong: rgba(0, 71, 160, 0.22);

  /* Text */
  --text: #1a2332;
  --text-muted: #4a5568;
  --text-faint: #718096;
  --text-on-dark: #ffffff;
  --text-on-dark-muted: rgba(255, 255, 255, 0.82);

  /* Accents */
  --accent: var(--nk-red);
  --accent-dim: rgba(237, 28, 36, 0.1);
  --accent-blue-dim: rgba(0, 71, 160, 0.08);
  --danger: #e85d5d;

  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-serif: "Libre Baskerville", Georgia, serif;
  --radius: 6px;
  --radius-lg: 10px;
  --container: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg-elevated);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--nk-blue);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover { color: var(--nk-red); }

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

/* Typography */
.eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nk-red);
  margin: 0 0 0.75rem;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  font-weight: 600;
  margin: 0 0 1rem;
  color: var(--text);
}

h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.01em;
}

h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
}

h3 { font-size: 1.15rem; }

.section-lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 62ch;
  margin: 0;
}

em { font-style: italic; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--nk-red);
  color: var(--nk-white);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-ghost:hover {
  border-color: var(--nk-blue);
  color: var(--nk-blue);
}

.btn-hero {
  background: transparent;
  color: var(--nk-white);
  border: 2px solid var(--nk-white);
  padding: 0.9rem 2.5rem;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.btn-hero:hover {
  background: var(--nk-white);
  color: var(--nk-blue);
}

.btn-sm { padding: 0.55rem 1.15rem; font-size: 0.875rem; }
.btn-full { width: 100%; }

/* Header — transparent over hero */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.45) 0%, transparent 100%);
  border-bottom: none;
  transition: background 0.3s, border-color 0.3s;
}

.site-header.scrolled {
  background: rgba(0, 71, 160, 0.96);
  border-bottom: 3px solid var(--nk-red);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--nk-white);
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.logo-accent {
  color: var(--nk-red);
}

.footer-logo {
  margin-bottom: 0.75rem;
}

.footer-logo .logo-mark {
  width: 36px;
  height: 36px;
}

.nav {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
}

.nav a {
  color: var(--text-on-dark-muted);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

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

.header-cta { margin-left: 0.5rem; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--nk-white);
  border-radius: 1px;
}

/* Hero — full-bleed Pyongyang */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0.15) 40%, rgba(0, 0, 0, 0.55) 100%),
    linear-gradient(90deg, rgba(0, 71, 160, 0.25) 0%, transparent 50%, rgba(237, 28, 36, 0.15) 100%);
}

.hero-center {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: calc(var(--header-h) + 3rem) 1rem 4rem;
  max-width: 820px;
}

.hero-hook {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-style: normal;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.88);
  max-width: 42ch;
  margin: 0 auto 1.5rem;
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nk-white);
  margin: 0 0 1.25rem;
}

.hero-eyebrow a {
  color: #ffd4d6;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.hero-eyebrow a:hover {
  color: var(--nk-white);
}

.hero-center h1 {
  color: var(--nk-white);
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--text-on-dark-muted);
  max-width: 54ch;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}

.hero-lead strong {
  color: var(--nk-white);
}

.hero-proof {
  list-style: none;
  padding: 0;
  margin: 0 auto 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem 2.5rem;
  max-width: 640px;
}

.hero-proof li {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  text-align: center;
}

.hero-proof strong {
  display: block;
  font-size: 1.35rem;
  color: var(--nk-white);
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.btn-hero-primary {
  background: var(--nk-red);
  border: 2px solid var(--nk-red);
  color: var(--nk-white);
  letter-spacing: 0.08em;
}

.btn-hero-primary:hover {
  background: var(--nk-red-dark);
  border-color: var(--nk-red-dark);
  color: var(--nk-white);
}

.btn-hero-secondary {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.65);
  color: var(--nk-white);
  letter-spacing: 0.06em;
}

.btn-hero-secondary:hover {
  background: var(--nk-white);
  color: var(--nk-blue);
  border-color: var(--nk-white);
}

.hero-subcta {
  margin: 1.25rem 0 0;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.65);
  font-style: italic;
  font-family: var(--font-serif);
}

/* Threat strip below hero */
.hero-threats {
  background: var(--nk-blue);
  padding: 2.5rem 0;
  border-bottom: 4px solid var(--nk-red);
}

.threats-panel {
  color: var(--nk-white);
}

.threats-panel-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-bottom: 1.25rem;
}

.room39-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--nk-white);
  background: var(--nk-red);
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  text-decoration: none;
  flex-shrink: 0;
}

.room39-badge:hover {
  background: var(--nk-red-dark);
  color: var(--nk-white);
}

.threats-panel .panel-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.01em;
  color: var(--nk-white);
  margin: 0;
  flex: 1;
  min-width: 200px;
  line-height: 1.4;
}

.threat-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

.threat-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.88);
  padding: 0.5rem 0;
}

.threat-tag {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nk-white);
  background: var(--nk-red);
  padding: 0.25rem 0.55rem;
  border-radius: 3px;
  height: fit-content;
}

.threats-panel .panel-note {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  margin: 0;
}

.threats-panel .panel-note a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.threats-panel .panel-note a:hover {
  color: var(--nk-white);
}

.section-header .section-lead { margin-top: 1rem; }

.section-header-tight {
  margin-top: 3rem;
  margin-bottom: 2rem;
}

/* Room 39 section */
.room39-intro h3 {
  color: var(--nk-blue);
  margin-bottom: 0.75rem;
}

.room39-intro p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.room39-stats {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.room39-stats li {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--nk-blue);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
}

.room39-stats strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--nk-red);
  margin-bottom: 0.35rem;
  line-height: 1.1;
}

.room39-stats span {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.commercial-risk-wrap {
  margin-top: 3rem;
}

.room39-sources {
  margin: 2rem 0 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.room39-sources a {
  white-space: nowrap;
}

#room-39 .card-source a {
  color: var(--nk-blue);
}

/* FBI threat link cards */
.threat-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.threat-link-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  box-shadow: 0 2px 10px rgba(0, 71, 160, 0.06);
}

.threat-link-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 71, 160, 0.14);
  border-color: var(--nk-blue);
  color: inherit;
}

.threat-link-thumb {
  aspect-ratio: 16 / 10;
  background: var(--nk-blue);
  overflow: hidden;
  border-bottom: 3px solid var(--nk-red);
}

.threat-link-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  image-rendering: auto;
  image-rendering: smooth;
  -ms-interpolation-mode: bicubic;
}

.threat-link-body {
  padding: 1.25rem 1.35rem 1.35rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.threat-link-body h3 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--nk-blue);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.threat-link-body p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
  flex: 1;
  line-height: 1.5;
}

.threat-link-source {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nk-red);
}

/* Sections */
.section {
  padding: 5rem 0;
  background: var(--bg-surface);
}

.section-alt {
  background: var(--bg-alt);
  border-block: 1px solid var(--border);
}

.section-header {
  margin-bottom: 3rem;
  max-width: 720px;
}

.section-header .section-lead { margin-top: 1rem; }

.section-header h2 {
  color: var(--nk-blue);
}

/* Cards */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--nk-red);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: 0 2px 12px rgba(0, 71, 160, 0.06);
}

.card h3 {
  color: var(--nk-blue);
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.card-bullets {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.card-bullets li { margin-bottom: 0.35rem; }

.card-source {
  font-size: 0.75rem;
  color: var(--text-faint);
  margin: 0;
  font-style: italic;
}

/* Indicator table */
.indicator-table-wrap {
  margin-top: 3rem;
  overflow-x: auto;
}

.table-title {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--nk-blue);
}

.indicator-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.indicator-table th,
.indicator-table td {
  text-align: left;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  vertical-align: top;
}

.indicator-table th {
  background: var(--nk-blue);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--nk-white);
}

.indicator-table td {
  color: var(--text-muted);
  background: var(--bg-surface);
}

.indicator-table td:first-child { color: var(--text); }

/* Samsung case study */
.case-study-grid {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 320px);
  gap: 2rem;
  align-items: start;
}

.savings-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.savings-stat {
  background: var(--nk-blue);
  color: var(--nk-white);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1rem;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0, 71, 160, 0.18);
}

.savings-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.35rem;
}

.savings-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.88;
  line-height: 1.35;
}

.case-study-bullets {
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
}

.case-study-bullets li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.case-study-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--nk-red);
}

.case-study-bullets strong {
  color: var(--text);
}

.case-study-actions {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-download::before {
  content: "";
  width: 18px;
  height: 18px;
  background: currentColor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3v12m0 0l4-4m-4 4l-4-4M4 17v2a2 2 0 002 2h12a2 2 0 002-2v-2'/%3E%3C/svg%3E") center / contain no-repeat;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2'%3E%3Cpath d='M12 3v12m0 0l4-4m-4 4l-4-4M4 17v2a2 2 0 002 2h12a2 2 0 002-2v-2'/%3E%3C/svg%3E") center / contain no-repeat;
}

.case-study-meta {
  margin: 1rem 0 0;
  font-size: 0.85rem;
  color: var(--text-faint);
}

.case-study-aside h3 {
  margin-top: 0;
}

.case-study-toc {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.case-study-toc li {
  margin-bottom: 0.45rem;
}

/* Services */
.service-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.service-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 2rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border);
}

.service-item:first-child { padding-top: 0; }
.service-item:last-child { border-bottom: none; padding-bottom: 0; }

.service-num {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--nk-red);
  opacity: 0.85;
  line-height: 1;
}

.service-body h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--nk-blue);
}

.service-body > p {
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  max-width: 68ch;
}

.service-meta {
  display: grid;
  gap: 0.5rem;
  margin: 0;
}

.service-meta div {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: 1rem;
  font-size: 0.9rem;
}

.service-meta dt {
  color: var(--text-faint);
  font-weight: 500;
}

.service-meta dd {
  margin: 0;
  color: var(--text-muted);
}

/* Methodology */
.method-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.method-col h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--nk-blue);
}

.check-list,
.flow-list {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.check-list li,
.flow-list li {
  margin-bottom: 0.65rem;
}

.flow-list { list-style: none; padding-left: 0; counter-reset: flow; }

.flow-list li {
  counter-increment: flow;
  padding-left: 2.5rem;
  position: relative;
}

.flow-list li::before {
  content: counter(flow);
  position: absolute;
  left: 0;
  top: 0;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--accent-blue-dim);
  color: var(--nk-blue);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.compliance-callout {
  margin: 0;
  padding: 1.5rem 1.75rem;
  background: var(--bg-surface);
  border-left: 4px solid var(--nk-red);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.compliance-callout p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Team */
.team-grid {
  grid-template-columns: repeat(2, 1fr);
}

.team-card {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto auto;
  column-gap: 1.25rem;
  border-top-color: var(--nk-blue);
}

.team-card .avatar {
  grid-row: 1 / 4;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-blue-dim);
  color: var(--nk-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  border: 2px solid var(--nk-blue);
}

.team-card h3 {
  grid-column: 2;
  margin-bottom: 0.35rem;
}

.team-card h3 .role {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--nk-red);
  margin-top: 0.15rem;
  font-family: var(--font-sans);
}

.team-card p {
  grid-column: 2;
}

.team-creds {
  grid-column: 2;
  font-size: 0.8rem !important;
  color: var(--text-faint) !important;
  margin-bottom: 0 !important;
}

.team-disclaimer {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-faint);
  font-style: italic;
}

/* Scenarios */
.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.scenario {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.scenario summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--nk-blue);
}

.scenario summary::-webkit-details-marker { display: none; }

.scenario summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--nk-red);
  flex-shrink: 0;
}

.scenario[open] summary::after { content: "−"; }

.scenario-body {
  padding: 0 1.5rem 1.25rem;
  border-top: 1px solid var(--border);
}

.scenario-body p {
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Contact */
#contact {
  background: var(--bg-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: start;
}

.contact-intro h2 {
  color: var(--nk-blue);
}

.contact-facts {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.contact-facts li {
  padding: 0.5rem 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.contact-facts li:last-child { border-bottom: none; }

.contact-email {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.contact-form {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-top: 4px solid var(--nk-blue);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 71, 160, 0.08);
}

.form-row {
  margin-bottom: 1.25rem;
}

.form-row label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-muted);
}

.optional {
  font-weight: 400;
  color: var(--text-faint);
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--nk-blue);
}

.form-row input::placeholder,
.form-row textarea::placeholder {
  color: var(--text-faint);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
}

.form-checkbox input {
  width: auto;
  margin-top: 0.2rem;
  accent-color: var(--nk-red);
}

.form-checkbox label { margin: 0; }

.form-status {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  min-height: 1.4em;
}

.form-status.success { color: #2d8a4e; }
.form-status.error { color: var(--danger); }

/* Footer */
.site-footer {
  padding: 3.5rem 0 2.5rem;
  border-top: 4px solid var(--nk-red);
  background: var(--nk-blue);
  color: var(--nk-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.6fr 1.4fr;
  gap: 2.5rem;
}

.footer-brand .logo-text {
  font-size: 1.15rem;
  color: var(--nk-white);
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  margin: 0.75rem 0 0;
  max-width: 28ch;
}

.footer-links h4,
.footer-legal h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

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

.footer-legal p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  line-height: 1.6;
}

/* Mobile nav open state */
.site-header.nav-open {
  background: var(--nk-blue);
}

/* Responsive */
@media (max-width: 960px) {
  .three-col,
  .room39-stats,
  .threat-links-grid,
  .method-grid,
  .team-grid,
  .contact-grid,
  .footer-grid,
  .case-study-grid {
    grid-template-columns: 1fr;
  }

  .savings-strip {
    grid-template-columns: 1fr;
  }

  .room39-stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--nk-blue);
    border-bottom: 3px solid var(--nk-red);
    padding: 1.25rem 1.5rem;
    gap: 1rem;
    margin-left: 0;
  }

  .nav.open { display: flex; }

  .nav-toggle { display: flex; }

  .header-cta { display: none; }

  .service-item {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .service-meta div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .team-card {
    grid-template-columns: 1fr;
  }

  .team-card .avatar {
    grid-row: auto;
    margin-bottom: 0.75rem;
  }

  .team-card h3,
  .team-card p,
  .team-creds {
    grid-column: 1;
  }
}

@media (max-width: 640px) {
  .hero-center { padding-bottom: 3rem; }

  .threat-links-grid {
    grid-template-columns: 1fr;
  }

  .section { padding: 3.5rem 0; }

  .room39-stats {
    grid-template-columns: 1fr;
  }

  .indicator-table th,
  .indicator-table td {
    padding: 0.75rem;
    font-size: 0.8rem;
  }
}