/* ==========================================================================
   DeepSlate — style.css
   Dark geological slate theme
   Body background: #0D1014 (near-black)
   Text: #E6EAF0
   Accent: #5B7C99 (slate blue)
   Supporting tones: #334155 · #A8C0D4 · #1B2531
   ========================================================================== */

:root {
  --bg: #0D1014;
  --bg-elev: #1B2531;
  --bg-elev-2: #141B23;
  --surface: #16202B;
  --accent: #5B7C99;
  --accent-deep: #48667F;
  --accent-light: #A8C0D4;
  --slate-mid: #334155;
  --slate-dark: #24303F;
  --text: #E6EAF0;
  --text-muted: #A8C0D4;
  --text-dim: #8A99A8;
  --border: #2A3542;
  --border-soft: #212C38;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-head: "Space Grotesk", "Inter", sans-serif;
  --font-mono: "Space Mono", "SFMono-Regular", monospace;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-size: 16px;
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.kicker__tick {
  display: inline-block;
  width: 26px;
  height: 3px;
  background-color: var(--accent);
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head--row {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background-color: var(--accent);
  color: #0D1014;
}

.btn--primary:hover {
  background-color: var(--accent-light);
}

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

.btn--ghost:hover {
  border-color: var(--accent-light);
  color: var(--accent-light);
}

.btn--light {
  background-color: var(--accent-light);
  color: #0D1014;
}

.btn--light:hover {
  background-color: #E6EAF0;
}

.btn--outline {
  background-color: transparent;
  color: var(--accent-light);
  border-color: var(--accent-light);
}

.btn--outline:hover {
  background-color: var(--accent-light);
  color: #0D1014;
}

/* ==========================================================================
   STRATA-BAND NAVIGATION
   ========================================================================== */

.strata-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s ease;
}

.strata-nav.is-scrolled {
  box-shadow: 0 10px 30px -18px #000000;
}

.strata-band {
  width: 100%;
}

/* Top band: brand plate (left) + CTA (right) */
.strata-band--top {
  background-color: var(--slate-dark);
  border-bottom: 1px solid var(--border-soft);
}

.strata-band--top .container,
.strata-band--top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  min-height: 58px;
}

.brand-plate {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-plate__mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--accent);
  color: #0D1014;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
  border-radius: 4px;
  box-shadow: inset 0 -3px 0 var(--accent-deep);
}

.brand-plate__label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--text);
}

.strata-top-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.strata-cta {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  color: #0D1014;
  background-color: var(--accent-light);
  padding: 9px 18px;
  border-radius: 4px;
  letter-spacing: 0.02em;
  transition: background-color 0.18s ease;
}

.strata-cta:hover {
  background-color: #E6EAF0;
}

/* Middle band: engraved nav links */
.strata-band--links {
  background-color: var(--slate-mid);
  border-bottom: 1px solid var(--border-soft);
}

.strata-links {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  max-width: 1180px;
  margin: 0 auto;
}

.strata-links a {
  display: inline-block;
  padding: 11px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #C9D6E3;
  text-shadow: 0 -1px 0 #1B2531;
  transition: color 0.16s ease, background-color 0.16s ease;
}

.strata-links a:hover {
  color: #E6EAF0;
  background-color: var(--slate-dark);
}

/* Decorative vein + base bands */
.strata-band--vein {
  height: 8px;
  background-color: var(--bg-elev);
  border-bottom: 1px solid var(--border-soft);
}

.strata-band--base {
  height: 5px;
  background-color: var(--bg-elev-2);
}

/* Nav toggle (mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background-color: transparent;
  border: 1px solid var(--slate-mid);
  border-radius: 4px;
  cursor: pointer;
  padding: 0 10px;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text);
}

/* ==========================================================================
   CORE-SAMPLE HERO
   ========================================================================== */

.core-hero {
  position: relative;
  padding: 88px 0 96px;
  background:
    radial-gradient(1100px 480px at 82% -10%, #16222E 0%, transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border-soft);
}

.core-hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.core-hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.3rem, 5vw, 3.9rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 24px;
}

.core-hero__sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.core-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.core-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-item__num {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--accent-light);
}

.meta-item__label {
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* Core sample visual */
.core-sample-scene {
  position: relative;
  display: flex;
  justify-content: center;
  padding-left: 34px;
}

.core-column {
  position: relative;
  width: 150px;
  height: 440px;
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  overflow: hidden;
  border: 2px solid var(--slate-mid);
  box-shadow: 0 30px 60px -30px #000000;
}

.core-seg {
  width: 100%;
  border-bottom: 1px solid var(--border-soft);
}

.core-seg:last-child {
  border-bottom: none;
}

.core-seg:nth-child(1) { background-color: #5B7C99; flex: 1.5; }
.core-seg:nth-child(2) { background-color: #334155; flex: 0.8; }
.core-seg:nth-child(3) { background-color: #7C8DA0; flex: 0.6; }
.core-seg:nth-child(4) { background-color: #2E4356; flex: 1.2; }
.core-seg:nth-child(5) { background-color: #A8C0D4; flex: 0.7; }
.core-seg:nth-child(6) { background-color: #1B2531; flex: 1.1; }
.core-seg:nth-child(7) { background-color: #5B7C99; flex: 0.5; }
.core-seg:nth-child(8) { background-color: #334155; flex: 1.0; }

.core-ruler {
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 18px;
  border-left: 2px solid var(--accent-light);
  background-image: repeating-linear-gradient(
    to bottom,
    var(--accent-light) 0 1px,
    transparent 1px 13px
  );
}

.core-tag {
  position: absolute;
  top: -18px;
  right: -6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent-light);
  background-color: var(--bg-elev);
  border: 1px solid var(--slate-mid);
  padding: 6px 10px;
  border-radius: 3px;
  white-space: nowrap;
}

.core-depth {
  position: absolute;
  left: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  transform: translateX(-100%);
  white-space: nowrap;
}

.core-depth--top {
  top: 30%;
}

.core-depth--base {
  bottom: 16%;
}

/* ==========================================================================
   FULL-WIDTH STATEMENT ROW
   ========================================================================== */

.statement-row {
  padding: 96px 0;
  background-color: var(--bg-elev-2);
  border-bottom: 1px solid var(--border-soft);
}

.statement-row__text {
  font-family: var(--font-head);
  font-size: clamp(1.7rem, 3.8vw, 2.9rem);
  line-height: 1.25;
  font-weight: 500;
  color: var(--text);
  max-width: 980px;
  letter-spacing: -0.01em;
}

.statement-row__mark {
  color: var(--accent-light);
  border-bottom: 3px solid var(--accent);
  padding-bottom: 2px;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */

.about-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}

.about-grid__body p {
  color: var(--text-muted);
  font-size: 1.02rem;
  margin-bottom: 20px;
}

.about-grid__body p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   RESULTS — BIG-NUMERAL STAT COLUMNS
   ========================================================================== */

.results-section {
  padding: 96px 0;
  background-color: var(--bg-elev);
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}

.stat-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  background-color: var(--surface);
}

.stat-col {
  padding: 36px 28px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.stat-col:last-child {
  border-right: none;
}

.stat-col__num {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 14px;
}

.stat-col__label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 8px;
}

.stat-col__note {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.5;
}

/* ==========================================================================
   SERVICES — HORIZONTAL SCROLL ROW
   ========================================================================== */

.services-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.scroll-controls {
  display: flex;
  gap: 10px;
}

.scroll-btn {
  width: 48px;
  height: 48px;
  border: 1px solid var(--slate-mid);
  background-color: transparent;
  color: var(--text);
  font-size: 20px;
  line-height: 1;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.scroll-btn:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #0D1014;
}

.scroll-viewport {
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 24px 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--slate-mid) var(--bg-elev-2);
}

.scroll-viewport::-webkit-scrollbar {
  height: 8px;
}

.scroll-viewport::-webkit-scrollbar-track {
  background: var(--bg-elev-2);
}

.scroll-viewport::-webkit-scrollbar-thumb {
  background: var(--slate-mid);
  border-radius: 4px;
}

.scroll-track {
  display: flex;
  gap: 20px;
  width: max-content;
  margin: 0 auto;
}

.cap-panel {
  scroll-snap-align: start;
  width: 300px;
  flex: 0 0 300px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 6px;
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  min-height: 300px;
}

.cap-panel__chip {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 26px;
  margin-bottom: 18px;
}

.cap-panel__chip i {
  display: block;
  height: 4px;
  border-radius: 1px;
}

.cap-panel__chip i:nth-child(1) { background-color: #5B7C99; }
.cap-panel__chip i:nth-child(2) { background-color: #A8C0D4; }
.cap-panel__chip i:nth-child(3) { background-color: #334155; }
.cap-panel__chip i:nth-child(4) { background-color: #7C8DA0; }

.cap-panel__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.cap-panel__title {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.cap-panel__text {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
  margin-bottom: 18px;
}

.cap-panel__tags {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent-light);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   APPROACH — NUMBERED PROCESS
   ========================================================================== */

.approach-section {
  padding: 96px 0;
  background-color: var(--bg-elev-2);
  border-top: 1px solid var(--border-soft);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  counter-reset: step;
  position: relative;
}

.process-list::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background-color: var(--slate-mid);
}

.process-step {
  position: relative;
  padding: 0 22px 0 0;
}

.process-step__num {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background-color: var(--bg-elev-2);
  border: 2px solid var(--accent);
  color: var(--accent-light);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  border-radius: 50%;
  margin-bottom: 22px;
}

.process-step__title {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.process-step__text {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   COMPARISON TABLE
   ========================================================================== */

.comparison-section {
  padding: 96px 0;
  background-color: var(--bg);
}

.comparison-table {
  border: 1px solid var(--border);
  background-color: var(--surface);
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.3fr;
  border-bottom: 1px solid var(--border);
}

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

.comparison-cell {
  padding: 18px 22px;
  font-size: 14.5px;
  color: var(--text-muted);
  border-right: 1px solid var(--border);
}

.comparison-cell:last-child {
  border-right: none;
}

.comparison-row--head .comparison-cell {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  background-color: var(--bg-elev-2);
}

.comparison-cell--label {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--text);
}

.comparison-cell--accent {
  background-color: var(--bg-elev);
  color: var(--text);
}

.comparison-row--head .comparison-cell--accent {
  background-color: var(--accent);
  color: #0D1014;
}

/* ==========================================================================
   SPLIT CTA BAND
   ========================================================================== */

.cta-band {
  background-color: var(--accent);
  border-top: 1px solid var(--border);
}

.cta-band__inner {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 40px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}

.cta-band__title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  color: #0D1014;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.cta-band__text {
  color: #16202B;
  font-size: 1.05rem;
  max-width: 620px;
}

.cta-band__actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: stretch;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */

.contact-section {
  padding: 96px 0;
  background-color: var(--bg-elev-2);
  border-top: 1px solid var(--border-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact-info__intro {
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 460px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-list li {
  display: flex;
  flex-direction: column;
}

.contact-list__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.contact-list__value {
  font-size: 1.05rem;
  color: var(--text);
  transition: color 0.16s ease;
}

a.contact-list__value:hover {
  color: var(--accent-light);
}

.contact-form {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: 6px;
  padding: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  margin-bottom: 18px;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.form-field input,
.form-field select,
.form-field textarea {
  background-color: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.16s ease;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-field textarea {
  resize: vertical;
}

.form-note {
  margin-top: 14px;
  font-size: 14px;
  color: var(--accent-light);
  min-height: 20px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  background-color: var(--bg);
  border-top: 4px solid var(--slate-mid);
  padding-top: 64px;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 48px;
}

.stone-plate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background-color: var(--accent);
  color: #0D1014;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  border-radius: 4px;
  box-shadow: inset 0 -4px 0 var(--accent-deep);
  margin-bottom: 18px;
}

.site-footer__tagline {
  color: var(--text-muted);
  font-size: 14.5px;
  max-width: 280px;
  line-height: 1.55;
}

.site-footer__heading {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 18px;
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__col a {
  color: var(--text-muted);
  font-size: 14.5px;
  transition: color 0.16s ease;
}

.site-footer__col a:hover {
  color: var(--accent-light);
}

.site-footer__muted {
  color: var(--text-dim);
  font-size: 14.5px;
}

.site-footer__base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid var(--border-soft);
  padding-top: 24px;
  padding-bottom: 24px;
  font-size: 13px;
  color: var(--text-dim);
}

/* ==========================================================================
   SCROLL REVEAL
   ========================================================================== */

.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 960px) {
  .core-hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .core-sample-scene {
    justify-content: flex-start;
    padding-left: 34px;
  }

  .core-column {
    height: 360px;
    width: 130px;
  }

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

  .stat-col:nth-child(2) {
    border-right: none;
  }

  .stat-col:nth-child(1),
  .stat-col:nth-child(2) {
    border-bottom: 1px solid var(--border);
  }

  .process-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }

  .process-list::before {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .comparison-row {
    grid-template-columns: 1fr 1.2fr 1.2fr;
  }

  .cta-band__inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }

  .core-hero {
    padding: 56px 0 64px;
  }

  .core-hero__meta {
    gap: 20px;
  }

  .stat-columns {
    grid-template-columns: 1fr;
  }

  .stat-col {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .stat-col:last-child {
    border-bottom: none;
  }

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

  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-cell {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .comparison-cell:last-child {
    border-bottom: none;
  }

  .comparison-row--head {
    display: none;
  }

  .comparison-cell--label {
    background-color: var(--bg-elev-2);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .section-head--row {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  /* Mobile nav */
  .strata-band--top .container,
  .strata-band--top {
    padding: 0 18px;
  }

  .brand-plate__label {
    display: none;
  }

  .strata-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .strata-band--links {
    display: none;
  }

  .strata-nav.is-open .strata-band--links {
    display: block;
  }

  .strata-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0;
  }

  .strata-links a {
    padding: 13px 18px;
    border-bottom: 1px solid var(--border-soft);
  }

  .strata-links li:last-child a {
    border-bottom: none;
  }
}