/* ===== Tokens ===== */
:root {
  --bg: #101211;
  --bg-2: #181c1a;
  --text: #f5f5f0;
  --text-2: #a1a8a2;
  --text-3: #8a918b;
  --accent: #34d399;
  --rule: rgba(245, 245, 240, 0.12);
  --rule-2: rgba(245, 245, 240, 0.22);
  --focus: #7dd6ff;
  --display:
    "Inter Tight", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --pad: clamp(5rem, 10vw, 9rem);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}
body {
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.65;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection {
  background: rgba(52, 211, 153, 0.28);
  color: #fff;
}
a {
  color: inherit;
  text-decoration: none;
}
h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 600;
}
a:focus-visible,
button:focus-visible,
.form-group :is(input, select, textarea):focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
  border-radius: 3px;
}
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #07130d;
  padding: 12px 18px;
  font-weight: 600;
  z-index: 999;
}
.skip-link:focus {
  left: 0;
}
.container {
  width: min(1160px, 90%);
  margin: 0 auto;
}
section {
  padding: var(--pad) 0;
}

/* ===== Nav ===== */
nav {
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.logo {
  font-family: var(--display);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  color: var(--text-2);
  font-size: 0.9375rem;
}
.nav-links a {
  transition: color 0.2s;
}
.nav-links a:hover {
  color: var(--text);
}
.nav-status {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
  font-size: 0.9375rem;
}
.nav-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--rule-2);
  border-radius: 6px;
  background: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
}
.mobile-nav {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 84px;
  left: 0;
  right: 0;
  background: var(--bg-2);
  border-bottom: 1px solid var(--rule);
  padding: 8px 5%;
  z-index: 50;
}
.mobile-nav.open {
  display: flex;
}
.mobile-nav a {
  padding: 16px 0;
  font-size: 1.0625rem;
  color: var(--text-2);
  border-bottom: 1px solid var(--rule);
}
.mobile-nav a:last-child {
  border-bottom: 0;
}

/* ===== Hero ===== */
.hero {
  padding: clamp(4.5rem, 11vw, 8.5rem) 0 clamp(4rem, 8vw, 7rem);
  text-align: left;
}
.hero-id {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}
.hero-portrait {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 50% 20%;
}
.eyebrow {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-2);
  margin: 0;
}
.hero h1 {
  font-size: clamp(2.75rem, 7.4vw, 6.25rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 13.5em;
}
.hero h1 span {
  color: var(--text-2);
}
.hero p {
  max-width: 36em;
  margin: clamp(1.75rem, 3vw, 2.5rem) 0;
  color: var(--text-2);
  font-size: 1.1875rem;
}
.buttons {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 14px 28px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 6px;
  font-size: 0.9375rem;
  font-weight: 600;
  transition:
    background 0.2s,
    color 0.2s,
    border-color 0.2s,
    opacity 0.2s;
}
.btn-primary {
  background: var(--accent);
  color: #07130d;
}
.btn-primary:hover {
  background: #5fe0b0;
}
.btn-secondary {
  border: 1px solid var(--rule-2);
  color: var(--text);
}
.btn-secondary:hover {
  border-color: var(--text);
}
.btn-ghost {
  min-height: 44px;
  padding: 0;
  color: var(--text-2);
  border-bottom: 1px solid var(--rule-2);
  border-radius: 0;
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--text);
}
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.hero-id,
.hero h1,
.hero p,
.hero .buttons {
  animation: rise 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.hero h1 {
  animation-delay: 0.08s;
}
.hero p {
  animation-delay: 0.18s;
}
.hero .buttons {
  animation-delay: 0.28s;
}

/* ===== Section headings ===== */
.section-label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 20px;
}
.section-title {
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 17em;
  margin-bottom: 24px;
}
.section-description {
  color: var(--text-2);
  font-size: 1.125rem;
  max-width: 38em;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

/* ===== Proof ===== */
.proof-wrap {
  padding-top: 0;
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
}
.proof-card {
  padding: 36px 28px 36px;
  border-left: 1px solid var(--rule);
}
.proof-card:first-child {
  border-left: 0;
  padding-left: 0;
}
.proof-card:nth-child(4) {
  border-left-color: var(--accent);
}
.proof-number {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.5rem, 5vw, 4.25rem);
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}
.proof-source {
  margin-top: 18px;
  font-size: 0.9375rem;
  font-weight: 600;
}
.proof-label {
  margin-top: 6px;
  font-size: 0.9375rem;
  color: var(--text-2);
  max-width: 24ch;
}
.proof-note {
  margin-top: 32px;
  max-width: 62ch;
  font-size: 0.875rem;
  color: var(--text-3);
}
.compliance-strip {
  margin-top: clamp(3rem, 6vw, 5rem);
  display: flex;
  gap: 0;
  border-left: 2px solid var(--accent);
  padding: 4px 0 4px 24px;
}
.compliance-strip .icon {
  display: none;
}
.compliance-strip p {
  max-width: 62ch;
  font-size: 1rem;
  color: var(--text-2);
}
.compliance-strip strong {
  color: var(--text);
  font-weight: 600;
}

/* ===== Source data ===== */
.data-proof-wrap {
  padding-top: var(--pad);
}
.data-proof-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.data-proof-head .heading-block {
  max-width: 44rem;
}
.data-proof-head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.data-proof-head p {
  color: var(--text-2);
  font-size: 1.0625rem;
}
.verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-3);
}
.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}
.data-proof-chrome {
  margin-bottom: 12px;
}
.chrome-dots {
  display: none;
}
.chrome-url {
  font-size: 0.9375rem;
  color: var(--text-3);
}
.data-proof-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--rule);
}
.data-proof-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-height: 44px;
  padding: 20px 20px 18px 0;
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  border-radius: 0;
  color: var(--text-3);
  font: inherit;
  font-size: 0.9375rem;
  text-align: left;
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.data-proof-tab:hover {
  color: var(--text);
}
.data-proof-tab[aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}
.tab-scope {
  font-size: 0.8125rem;
  text-transform: lowercase;
  color: var(--text-3);
}
.tab-scope::first-letter {
  text-transform: uppercase;
}
.tab-value {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  letter-spacing: -0.02em;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.data-proof-tab[aria-selected="true"] .tab-value {
  color: var(--text);
}
.report-panel {
  padding: clamp(2rem, 4vw, 3rem) 0 0;
}
.report-panel[hidden] {
  display: none !important;
}
.report-summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
}
.report-kicker {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}
.report-summary h3 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}
.report-summary p {
  color: var(--text-2);
  font-size: 1.0625rem;
  max-width: 40em;
}
.report-platform {
  flex-shrink: 0;
  font-size: 0.9375rem;
  color: var(--text-3);
}
.report-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
}
.report-metric {
  padding: 24px 24px 24px 0;
  min-width: 0;
}
.report-metric + .report-metric {
  padding-left: 24px;
  border-left: 1px solid var(--rule);
}
.report-metric-value {
  display: block;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.75rem, 3.2vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.report-metric-label {
  display: block;
  margin-top: 8px;
  font-size: 0.9375rem;
  color: var(--text-2);
}
.report-image-link {
  position: relative;
  display: block;
  border: 1px solid var(--rule-2);
  border-radius: 4px;
  overflow: hidden;
  background: #0b0d0c;
}
.report-image-link img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 100px;
  object-fit: contain;
  transition: opacity 0.25s;
}
.report-image-link:hover img {
  opacity: 0.9;
}
.report-image-hint {
  position: absolute;
  right: 14px;
  bottom: 14px;
  padding: 8px 12px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  background: rgba(16, 18, 17, 0.92);
  border: 1px solid var(--rule-2);
  border-radius: 4px;
}
.report-footnote {
  margin-top: 20px;
  max-width: 70ch;
  font-size: 0.875rem;
  color: var(--text-3);
}

/* ===== Case studies: chapters, alternating bands ===== */
#case-studies {
  overflow-x: clip;
}
.case-grid {
  display: block;
}
.case-card {
  display: flow-root;
  position: relative;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  border-top: 1px solid var(--rule);
}
.case-card:nth-child(even) {
  background: var(--bg-2);
  box-shadow: 0 0 0 100vmax var(--bg-2);
  clip-path: inset(0 -100vmax);
}
.case-card .case-top,
.case-card > h3 {
  float: left;
  width: 38%;
}
.case-card:nth-child(even) .case-top,
.case-card:nth-child(even) > h3 {
  float: right;
}
.case-card > :not(.case-top):not(h3) {
  margin-left: 46%;
}
.case-card:nth-child(even) > :not(.case-top):not(h3) {
  margin-left: 0;
  margin-right: 46%;
}
.case-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  clear: both;
}
.case-index {
  font-size: 0.875rem;
  color: var(--text-3);
  text-transform: lowercase;
}
.case-index::first-letter {
  text-transform: uppercase;
}
.case-status {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
}
.case-card > h3 {
  clear: both;
  margin-top: 20px;
  font-size: clamp(2rem, 3.6vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.case-card > p {
  max-width: 40em;
  margin-bottom: 28px;
  color: var(--text-2);
}
.case-tags {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.tag {
  font-size: 0.9375rem;
  color: var(--text-3);
}
.tag:not(:last-child)::after {
  content: "/";
  margin: 0 12px;
  opacity: 0.5;
}
.case-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--rule);
  margin-bottom: 20px;
}
.result {
  padding: 24px 20px 24px 0;
  border-bottom: 1px solid var(--rule);
}
.result:nth-child(even) {
  padding-left: 24px;
  border-left: 1px solid var(--rule);
}
.result-number {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.625rem, 2.6vw, 2.25rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}
.result-label {
  margin-top: 8px;
  font-size: 0.9375rem;
  color: var(--text-2);
}
.case-caveat {
  max-width: 52ch;
  margin-bottom: 32px;
  font-size: 0.9375rem;
  color: var(--text-3);
}
.doc-preview {
  margin-bottom: 36px;
  padding: 4px 0 4px 20px;
  border-left: 2px solid var(--rule-2);
}
.doc-preview-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.9375rem;
  color: var(--text-2);
}
.icon-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.preview-bars {
  display: grid;
  gap: 12px;
}
.preview-bar-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.preview-bar-tag {
  width: 96px;
  font-size: 0.9375rem;
  color: var(--text-2);
  flex-shrink: 0;
}
.preview-bar-track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(245, 245, 240, 0.08);
  overflow: hidden;
}
.preview-bar-fill {
  height: 100%;
  width: 0;
  border-radius: 3px;
  transition: width 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.preview-bar-fill.before {
  background: rgba(245, 245, 240, 0.3);
}
.preview-bar-fill.after {
  background: var(--accent);
}
.doc-preview.in-view .preview-bar-fill {
  width: var(--w);
}
.preview-bar-value {
  width: 64px;
  text-align: right;
  font-size: 0.9375rem;
  font-weight: 600;
  flex-shrink: 0;
}
.doc-preview-caption {
  margin-top: 14px;
  max-width: 52ch;
  font-size: 0.8125rem;
  color: var(--text-3);
}
.case-card .btn {
  min-height: 0;
  padding: 0 0 4px;
  border-radius: 0;
  border-bottom: 1px solid currentColor;
  background: none;
  color: var(--accent);
  font-size: 1rem;
}
.case-card .btn:hover {
  color: var(--text);
  background: none;
}

/* ===== Reports ===== */
#reports {
  background: var(--bg-2);
}
.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(3rem, 6vw, 6rem);
}
.system-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 14px;
}
.system-header h3 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}
.system-year {
  font-size: 0.9375rem;
  color: var(--text-3);
  white-space: nowrap;
}
.system-card > p {
  max-width: 34em;
  margin-bottom: 32px;
  color: var(--text-2);
}
.resource-list {
  border-top: 1px solid var(--rule);
}
.resource {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
}
.resource-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.resource-title {
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.2s;
}
.resource-description {
  font-size: 0.9375rem;
  color: var(--text-2);
}
.resource-arrow {
  color: var(--accent);
  font-size: 1.125rem;
  transition: transform 0.2s;
}
.resource:hover .resource-title {
  color: var(--accent);
}
.resource:hover .resource-arrow {
  transform: translateX(4px);
}

/* ===== Experience ===== */
.timeline {
  border-top: 1px solid var(--rule);
}
.timeline-item {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) 3fr;
  column-gap: 32px;
  padding: 40px 0;
  border-bottom: 1px solid var(--rule);
}
.timeline-dates {
  grid-column: 1;
  grid-row: 1 / span 3;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.timeline-role {
  grid-column: 2;
  font-size: clamp(1.375rem, 2.2vw, 1.75rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.timeline-context {
  grid-column: 2;
  font-size: 0.9375rem;
  color: var(--text-2);
  margin-bottom: 20px;
}
.timeline-item ul {
  grid-column: 2;
  display: grid;
  gap: 10px;
  max-width: 62ch;
  padding-left: 20px;
}
.timeline-item li::marker {
  color: var(--text-3);
}

/* ===== Certifications ===== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: clamp(2rem, 5vw, 5rem);
}
.cert-card {
  display: flex;
  flex-direction: column;
  padding: 28px 0 32px;
  border-top: 1px solid var(--rule);
}
.cert-badge {
  display: none;
}
.cert-content {
  flex: 1;
}
.cert-card .cert-name {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: color 0.2s;
}
.cert-issuer {
  margin-top: 4px;
  font-size: 0.9375rem;
  color: var(--text-2);
}
.cert-card .cert-note {
  margin-top: 12px;
  max-width: 44ch;
  font-size: 0.9375rem;
  color: var(--text-2);
}
.cert-link {
  margin-top: 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--accent);
}
.cert-card:hover .cert-name {
  color: var(--accent);
}

/* ===== Capabilities ===== */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  column-gap: clamp(2rem, 4vw, 3.5rem);
}
.service {
  padding: 28px 0 40px;
  border-top: 1px solid var(--rule);
}
.service-number {
  margin-bottom: 16px;
  font-size: 0.875rem;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}
.service h3 {
  margin-bottom: 10px;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.service p {
  max-width: 34ch;
  font-size: 0.9375rem;
  color: var(--text-2);
}

/* ===== Operating model ===== */
.operating-model {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
}
.model-card h3 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}
.model-card p {
  max-width: 34em;
  margin-bottom: 28px;
  color: var(--text-2);
}
.model-list,
.about-list {
  list-style: none;
  border-top: 1px solid var(--rule);
}
.model-list li,
.about-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 1rem;
}
.model-list li::before,
.about-list li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 14px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: middle;
}

/* ===== About ===== */
.about {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(3rem, 8vw, 7rem);
  align-items: start;
}
.about p {
  max-width: 36em;
  margin-bottom: 20px;
  color: var(--text-2);
}
.about p:first-of-type {
  font-family: var(--display);
  font-size: clamp(1.375rem, 2.2vw, 1.75rem);
  line-height: 1.4;
  letter-spacing: -0.015em;
  color: var(--text);
}
.about-photo-card {
  margin-bottom: 40px;
}
.about-photo {
  display: block;
  width: min(100%, 340px);
  height: auto;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: 50% 20%;
  border-radius: 4px;
}
.about-photo-name {
  margin-top: 18px;
  font-family: var(--display);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.about-photo-role {
  font-size: 0.9375rem;
  color: var(--text-2);
}

/* ===== Contact ===== */
.cta {
  padding: clamp(4rem, 8vw, 7rem) 0 0;
  border-top: 1px solid var(--rule);
  text-align: left;
}
.cta h2 {
  max-width: 13em;
  margin-bottom: 24px;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
}
.cta p {
  max-width: 36em;
  margin: 0 0 40px;
  color: var(--text-2);
  font-size: 1.1875rem;
}
.contact-form {
  width: 100%;
  max-width: 640px;
  margin: clamp(3.5rem, 6vw, 5rem) 0 0;
  padding: 0;
  text-align: left;
}
.form-group {
  display: grid;
  gap: 4px;
  margin-bottom: 28px;
}
.form-group label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-2);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  min-height: 52px;
  padding: 14px 0;
  color: var(--text);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule-2);
  border-radius: 0;
  font: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}
.form-group textarea {
  min-height: 140px;
  resize: vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-3);
}
.form-group select:invalid {
  color: var(--text-3);
}
.form-group select option {
  color: var(--text);
  background: var(--bg-2);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom-color: var(--accent);
}
.contact-submit {
  min-width: 220px;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
}
.contact-submit:disabled {
  cursor: wait;
  opacity: 0.7;
}
.cta .form-note {
  margin: 16px 0 0;
  max-width: none;
  font-size: 0.875rem;
  color: var(--text-3);
}
.form-feedback {
  margin-top: 24px;
  padding: 18px 20px;
  font-size: 1rem;
  line-height: 1.7;
  border-left: 2px solid;
}
.form-feedback.success {
  color: var(--text);
  background: rgba(52, 211, 153, 0.07);
  border-color: var(--accent);
}
.form-feedback.error {
  color: #ffd5d5;
  background: rgba(255, 90, 90, 0.07);
  border-color: #ff8a8a;
}
.form-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.cta-section-tail {
  display: none;
}

/* ===== Footer ===== */
footer {
  margin-top: clamp(4rem, 8vw, 7rem);
  padding: 40px 0;
  border-top: 1px solid var(--rule);
  font-size: 0.875rem;
  color: var(--text-3);
}
footer a {
  text-decoration: underline;
  text-decoration-color: var(--rule-2);
  text-underline-offset: 3px;
}
footer a:hover {
  color: var(--text);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .proof-card,
  .proof-card:first-child {
    padding: 32px 20px 32px 0;
    border-left: 0;
    border-top: 1px solid var(--rule);
  }
  .proof-grid {
    border-top: 0;
  }
  .proof-card:nth-child(4) {
    border-top-color: var(--accent);
  }
  .data-proof-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .data-proof-tab {
    border-bottom: 1px solid var(--rule);
    margin-bottom: 0;
  }
  .data-proof-tab[aria-selected="true"] {
    border-bottom-color: var(--accent);
  }
  .report-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .report-metric:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }
  .report-metric:nth-child(n + 3) {
    border-top: 1px solid var(--rule);
  }
  .case-card .case-top,
  .case-card > h3,
  .case-card:nth-child(even) .case-top,
  .case-card:nth-child(even) > h3 {
    float: none;
    width: auto;
  }
  .case-card > :not(.case-top):not(h3),
  .case-card:nth-child(even) > :not(.case-top):not(h3) {
    margin-left: 0;
    margin-right: 0;
  }
  .case-card > h3 {
    margin-bottom: 28px;
  }
  .systems-grid,
  .operating-model,
  .cert-grid,
  .about {
    grid-template-columns: 1fr;
  }
  .services {
    grid-template-columns: repeat(2, 1fr);
  }
  .timeline-item {
    grid-template-columns: 1fr;
  }
  .timeline-dates,
  .timeline-role,
  .timeline-context,
  .timeline-item ul {
    grid-column: 1;
    grid-row: auto;
  }
  .timeline-dates {
    margin-bottom: 8px;
  }
}
@media (max-width: 650px) {
  nav {
    height: 72px;
  }
  .mobile-nav {
    top: 72px;
  }
  .proof-grid,
  .services {
    grid-template-columns: 1fr;
  }
  .report-summary {
    flex-direction: column;
    gap: 10px;
  }
  .data-proof-head {
    align-items: flex-start;
  }
  .data-proof-tab {
    padding: 16px 12px 14px 0;
  }
  .report-image-hint {
    right: 8px;
    bottom: 8px;
  }
}
@media (max-width: 520px) {
  .buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .buttons .btn-ghost {
    align-self: flex-start;
  }
  .case-results {
    grid-template-columns: 1fr;
  }
  .result:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }
  .preview-bar-tag {
    width: 84px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}