/* ============================================================
   BioZent LLC — Wind Tunnel Systems Engineering
   LIGHT aero-lab theme
   TUNNEL-BONE #EEEBE3 body / VANE-INK #2C2F33 text
   STREAMLINE-BLUE #2D6E9E accent
   NOZZLE-SLATE #26303A wells + footer
   SHELL-CREAM #E4DFD2 panels
   GANTRY-OLIVE #6F7347 tertiary
   MESH-SILVER #C6C4BB honeycomb mesh
   STREAK-WHITE #F5F2E9 reserved: smoke lines + separation bubble only
   ============================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.68;
  color: #2C2F33;
  background-color: #EEEBE3;
  overflow-x: hidden;
}

a {
  color: #2D6E9E;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* ---------------------------------------------------------
   CONTRACTION CONE HEADER  .conehdr
   one deep NOZZLE-SLATE band narrowing through stepped inset edges
   five round portholes along the band
   --------------------------------------------------------- */

.conehdr {
  background-color: #26303A;
  padding: 0 0 26px 0;
  position: relative;
}

.conehdr-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px 24px 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.conehdr-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.conehdr-brandname {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #EEEBE3;
  text-transform: uppercase;
}

.conehdr-brandsub {
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: #C6C4BB;
}

.conehdr-portholes {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.conehdr-port {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background-color: #E4DFD2;
  border: 5px solid #E4DFD2;
  box-shadow: inset 0 0 0 8px #26303A, inset 0 0 0 9px #C6C4BB;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.conehdr-port a {
  color: #2C2F33;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.2;
  text-decoration: none;
  padding: 0 6px;
}

.conehdr-port:hover {
  transform: translateY(-3px);
  box-shadow: inset 0 0 0 8px #26303A, inset 0 0 0 9px #2D6E9E;
}

.conehdr-port.is-current {
  box-shadow: inset 0 0 0 8px #26303A, inset 0 0 0 9px #2D6E9E;
}

/* stepped inset edges giving the narrowing cone mouth */
.conehdr-step1 {
  height: 12px;
  background-color: #26303A;
  margin: 0 22px;
  border-radius: 0 0 6px 6px;
}

.conehdr-step2 {
  height: 10px;
  background-color: #26303A;
  margin: 0 46px;
  border-radius: 0 0 5px 5px;
}

.conehdr-step3 {
  height: 8px;
  background-color: #26303A;
  margin: 0 74px;
  border-radius: 0 0 4px 4px;
}

.conehdr-toggle {
  display: none;
  background-color: #2D6E9E;
  color: #EEEBE3;
  border: 0;
  padding: 10px 16px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 3px;
}

/* ---------------------------------------------------------
   TEST SECTION SCENE  .testsec
   stacked scene: headline top-left, full-width tunnel below
   --------------------------------------------------------- */

.testsec {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 24px 40px 24px;
}

.testsec-headline {
  max-width: 780px;
}

.testsec-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #2D6E9E;
  border-bottom: 2px solid #2D6E9E;
  padding-bottom: 6px;
  margin-bottom: 26px;
  font-weight: 700;
}

.testsec-title {
  font-size: 3.6rem;
  line-height: 1.06;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.testsec-l1 {
  display: block;
  color: #2C2F33;
}

.testsec-l2 {
  display: block;
  color: #2D6E9E;
}

.testsec-l3 {
  display: block;
  color: #2C2F33;
}

.testsec-intro {
  margin-top: 26px;
  font-size: 1.08rem;
  color: #2C2F33;
  max-width: 720px;
}

.testsec-actions {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.testsec-cta-primary {
  display: inline-block;
  background-color: #2D6E9E;
  color: #EEEBE3;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.82rem;
  padding: 16px 34px;
  border-radius: 3px;
  text-decoration: none;
  border: 2px solid #2D6E9E;
}

.testsec-cta-primary:hover {
  background-color: #26303A;
  border-color: #26303A;
  text-decoration: none;
}

.testsec-cta-link {
  color: #2D6E9E;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border-bottom: 2px solid #2D6E9E;
  padding-bottom: 2px;
}

.testsec-cta-link:hover {
  text-decoration: none;
  color: #26303A;
  border-color: #26303A;
}

/* the full-width test section on a SHELL-CREAM field */
.testsec-window {
  margin-top: 54px;
  background-color: #E4DFD2;
  border: 3px solid #26303A;
  border-radius: 6px;
  padding: 34px;
  position: relative;
}

.testsec-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 26px;
  align-items: center;
  min-height: 340px;
}

/* -- honeycomb straightener mesh panel -- */
.tunmesh {
  background-color: #26303A;
  border-radius: 6px;
  padding: 18px;
  border: 3px solid #C6C4BB;
}

.tunmesh-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #C6C4BB;
  margin-bottom: 12px;
  text-align: center;
}

.tunmesh-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.tunmesh-cell {
  aspect-ratio: 1 / 1;
  background-color: #C6C4BB;
  border-radius: 3px;
  clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
}

/* -- test window with model wing on sting mount -- */
.tunwindow {
  background-color: #EEEBE3;
  border: 8px solid #26303A;
  border-radius: 8px;
  padding: 20px;
  position: relative;
  min-height: 300px;
  overflow: hidden;
}

.tunwindow-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #2C2F33;
  margin-bottom: 6px;
}

.tunairfoil {
  position: absolute;
  top: 48%;
  left: 46%;
  width: 130px;
  height: 34px;
  background-color: #2D6E9E;
  border: 3px solid #26303A;
  border-radius: 60% 30% 30% 60% / 70% 60% 60% 70%;
  transform: translate(-50%, -50%) rotate(-6deg);
}

.tunsting {
  position: absolute;
  top: 48%;
  left: 46%;
  width: 4px;
  height: 110px;
  background-color: #6F7347;
  transform: translate(-50%, 0);
}

.tunstreak {
  position: absolute;
  left: 6%;
  width: 170px;
  height: 4px;
  border-radius: 4px;
  background-color: #F5F2E9;
  border: 1px solid #2D6E9E;
}

.tunstreak-a {
  top: 30%;
  transform: rotate(-4deg);
}

.tunstreak-b {
  top: 44%;
  width: 200px;
  transform: rotate(-8deg);
}

.tunstreak-c {
  top: 60%;
  width: 150px;
  transform: rotate(-12deg);
}

.tunbubble {
  position: absolute;
  top: 17%;
  right: 16%;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: #F5F2E9;
  border: 2px dashed #2C2F33;
}

.tunflowarrow {
  position: absolute;
  bottom: 14px;
  right: 20px;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #2C2F33;
}

/* -- pitot rake with five probe tubes + anemometer dial -- */
.tunrake {
  background-color: #E4DFD2;
  border: 3px solid #26303A;
  border-radius: 6px;
  padding: 18px;
}

.tunrake-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #2C2F33;
  margin-bottom: 12px;
  text-align: center;
}

.tunrake-tubes {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 20px;
}

.tunrake-tube {
  height: 8px;
  background-color: #6F7347;
  border-radius: 4px;
}

.tunrake-tube:nth-child(1) { width: 100%; }
.tunrake-tube:nth-child(2) { width: 84%; }
.tunrake-tube:nth-child(3) { width: 92%; }
.tunrake-tube:nth-child(4) { width: 76%; }
.tunrake-tube:nth-child(5) { width: 88%; }

.tundial {
  width: 108px;
  height: 108px;
  margin: 0 auto;
  border-radius: 50%;
  background-color: #EEEBE3;
  border: 4px solid #26303A;
  position: relative;
}

.tundial-needle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 42px;
  height: 3px;
  background-color: #2D6E9E;
  transform-origin: 0 50%;
  transform: rotate(-38deg);
  border-radius: 3px;
}

.tundial-hub {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #26303A;
  transform: translate(-50%, -50%);
}

.tundial-caption {
  text-align: center;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #2C2F33;
  margin-top: 8px;
}

/* ---------------------------------------------------------
   RUN MATRIX RUN  .runmatrix
   six staggered run-schedule cards, tabs breaking left edge
   --------------------------------------------------------- */

.runmatrix {
  background-color: #E4DFD2;
  padding: 72px 24px 84px 24px;
}

.runmatrix-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.runmatrix-heading {
  font-size: 2.1rem;
  font-weight: 800;
  color: #2C2F33;
  letter-spacing: -0.01em;
}

.runmatrix-sub {
  margin-top: 10px;
  margin-bottom: 48px;
  max-width: 720px;
  color: #2C2F33;
}

.runmatrix-run {
  display: flex;
  align-items: stretch;
  position: relative;
  margin-bottom: 30px;
}

.runmatrix-run:nth-child(odd) {
  margin-left: 0;
  margin-right: 60px;
}

.runmatrix-run:nth-child(even) {
  margin-left: 60px;
  margin-right: 0;
}

.runmatrix-tab {
  flex: 0 0 auto;
  width: 74px;
  background-color: #26303A;
  color: #EEEBE3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  border-radius: 4px 0 0 4px;
  margin-left: -30px;
  position: relative;
  z-index: 2;
}

.runmatrix-body {
  flex: 1 1 auto;
  background-color: #EEEBE3;
  border: 2px solid #C6C4BB;
  border-left: 0;
  border-radius: 0 4px 4px 0;
  padding: 24px 28px;
}

.runmatrix-body h3 {
  font-size: 1.22rem;
  color: #2C2F33;
  margin-bottom: 8px;
}

.runmatrix-body h3 a {
  color: #2C2F33;
  text-decoration: none;
}

.runmatrix-body h3 a:hover {
  color: #2D6E9E;
  text-decoration: underline;
}

.runmatrix-body p {
  color: #2C2F33;
  font-size: 0.98rem;
}

.runmatrix-stamp {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  color: #2D6E9E;
  border: 2px solid #2D6E9E;
  border-radius: 3px;
  padding: 4px 10px;
}

.runmatrix-run.has-stamp .runmatrix-body {
  border-color: #2D6E9E;
}

.runmatrix-run.has-tap .runmatrix-body {
  border-style: dashed;
  border-color: #6F7347;
}

/* ---------------------------------------------------------
   CONTENT BANDS — editorial prose, service weaving
   --------------------------------------------------------- */

.band-open {
  max-width: 1120px;
  margin: 0 auto;
  padding: 74px 24px;
}

.band-open h2 {
  font-size: 1.9rem;
  color: #2C2F33;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.band-open p {
  margin-bottom: 18px;
  color: #2C2F33;
}

.band-open p a {
  color: #2D6E9E;
  font-weight: 700;
}

.band-split-note {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  margin-top: 30px;
}

.band-note {
  background-color: #E4DFD2;
  border-left: 6px solid #2D6E9E;
  padding: 24px 26px;
  border-radius: 0 4px 4px 0;
}

.band-note h3 {
  font-size: 1.1rem;
  color: #2C2F33;
  margin-bottom: 8px;
}

.band-note p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* calibrated band — GANTRY-OLIVE tertiary use, sparse */
.band-calibrated {
  background-color: #6F7347;
  padding: 56px 24px;
}

.band-calibrated-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: center;
}

.band-calibrated h2 {
  color: #EEEBE3;
  font-size: 1.75rem;
  margin-bottom: 14px;
}

.band-calibrated p {
  color: #EEEBE3;
  font-size: 0.98rem;
}

.band-calibrated-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.band-calibrated-list li {
  color: #EEEBE3;
  font-size: 0.95rem;
  padding-left: 26px;
  position: relative;
}

.band-calibrated-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 4px;
  background-color: #EEEBE3;
  border-radius: 2px;
}

/* ---------------------------------------------------------
   ANEMOMETER BAND  .anemoband
   one slim NOZZLE-SLATE band, dial glyph left, sentence right
   --------------------------------------------------------- */

.anemoband {
  background-color: #26303A;
  padding: 22px 24px;
}

.anemoband-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.anemoband-dial {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: #EEEBE3;
  border: 3px solid #C6C4BB;
  position: relative;
}

.anemoband-needle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 3px;
  background-color: #2D6E9E;
  transform-origin: 0 50%;
  transform: rotate(-46deg);
  border-radius: 3px;
}

.anemoband-txt {
  color: #EEEBE3;
  font-size: 0.98rem;
}

.anemoband-txt a {
  color: #EEEBE3;
  font-weight: 700;
  text-decoration: underline;
}

/* ---------------------------------------------------------
   CONTACT / FAQ BLOCKS
   --------------------------------------------------------- */

.contactsec {
  background-color: #E4DFD2;
  padding: 74px 24px;
}

.contactsec-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 48px;
}

.contactsec h2 {
  font-size: 1.85rem;
  color: #2C2F33;
  margin-bottom: 16px;
}

.contactsec p {
  color: #2C2F33;
  margin-bottom: 16px;
}

.contactform {
  display: grid;
  gap: 14px;
  background-color: #EEEBE3;
  border: 2px solid #C6C4BB;
  border-radius: 6px;
  padding: 26px;
}

.contactform label {
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #2C2F33;
  font-weight: 700;
}

.contactform input,
.contactform select,
.contactform textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  color: #2C2F33;
  background-color: #EEEBE3;
  border: 2px solid #C6C4BB;
  border-radius: 3px;
  padding: 11px 12px;
}

.contactform input:focus,
.contactform select:focus,
.contactform textarea:focus {
  outline: 3px solid #2D6E9E;
  outline-offset: 1px;
}

.contactform textarea {
  min-height: 130px;
  resize: vertical;
}

.contactform button {
  background-color: #2D6E9E;
  color: #EEEBE3;
  border: 2px solid #2D6E9E;
  border-radius: 3px;
  padding: 14px 26px;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  cursor: pointer;
}

.contactform button:hover {
  background-color: #26303A;
  border-color: #26303A;
}

.contactform-note {
  font-size: 0.82rem;
  color: #2C2F33;
  margin-top: 8px;
}

.contactdetails {
  display: grid;
  gap: 22px;
  align-content: start;
}

.contactblock {
  background-color: #EEEBE3;
  border-left: 6px solid #6F7347;
  border-radius: 0 4px 4px 0;
  padding: 20px 22px;
}

.contactblock h3 {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #2D6E9E;
  margin-bottom: 6px;
}

.contactblock p {
  margin-bottom: 0;
  color: #2C2F33;
}

.contactblock a {
  color: #2C2F33;
  font-weight: 700;
}

.faqsec {
  max-width: 1000px;
  margin: 0 auto;
  padding: 74px 24px;
}

.faqsec h2 {
  font-size: 1.85rem;
  color: #2C2F33;
  margin-bottom: 30px;
}

.faqitem {
  border-bottom: 2px solid #C6C4BB;
}

.faqq {
  width: 100%;
  background-color: #EEEBE3;
  border: 0;
  text-align: left;
  font-family: inherit;
  font-size: 1.04rem;
  font-weight: 700;
  color: #2C2F33;
  padding: 20px 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faqq:hover {
  color: #2D6E9E;
}

.faqq-mark {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid #2D6E9E;
  border-radius: 3px;
  position: relative;
}

.faqq-mark::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 4px;
  width: 10px;
  height: 2px;
  background-color: #2D6E9E;
}

.faqq-mark::after {
  content: "";
  position: absolute;
  top: 9px;
  left: 4px;
  width: 10px;
  height: 2px;
  background-color: #2D6E9E;
  transform: rotate(90deg);
}

.faqitem.is-open .faqq-mark::after {
  transform: rotate(0deg);
}

.faqa {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faqitem.is-open .faqa {
  max-height: 420px;
}

.faqa p {
  padding: 0 0 22px 0;
  color: #2C2F33;
}

/* ---------------------------------------------------------
   SIX SERVICE DETAIL BLOCKS (services page)
   --------------------------------------------------------- */

.svchero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 64px 24px 30px 24px;
}

.svchero h1 {
  font-size: 3rem;
  line-height: 1.08;
  color: #2C2F33;
  letter-spacing: -0.02em;
}

.svchero h1 span {
  display: block;
  color: #2D6E9E;
}

.svchero p {
  margin-top: 22px;
  max-width: 780px;
  color: #2C2F33;
  font-size: 1.06rem;
}

.svclist {
  max-width: 1120px;
  margin: 0 auto;
  padding: 30px 24px 80px 24px;
  display: grid;
  gap: 26px;
}

.svccard {
  background-color: #E4DFD2;
  border: 2px solid #C6C4BB;
  border-radius: 6px;
  padding: 30px 32px;
  position: relative;
}

.svccard-tag {
  position: absolute;
  top: -16px;
  left: 30px;
  background-color: #26303A;
  color: #EEEBE3;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 3px;
}

.svccard h2 {
  font-size: 1.4rem;
  color: #2C2F33;
  margin: 10px 0 12px 0;
}

.svccard p {
  color: #2C2F33;
  margin-bottom: 14px;
}

.svccard ul {
  list-style: none;
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.svccard ul li {
  color: #2C2F33;
  font-size: 0.95rem;
  padding-left: 26px;
  position: relative;
}

.svccard ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 4px;
  background-color: #2D6E9E;
  border-radius: 2px;
}

/* process overview */
.procsec {
  background-color: #E4DFD2;
  padding: 74px 24px;
}

.procsec-inner {
  max-width: 1120px;
  margin: 0 auto;
}

.procsec h2 {
  font-size: 1.9rem;
  color: #2C2F33;
  margin-bottom: 12px;
}

.procsec > .procsec-inner > p {
  max-width: 760px;
  color: #2C2F33;
  margin-bottom: 40px;
}

.procsteps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.procstep {
  background-color: #EEEBE3;
  border-top: 6px solid #26303A;
  border-radius: 0 0 4px 4px;
  padding: 24px;
}

.procstep h3 {
  font-size: 1.1rem;
  color: #2C2F33;
  margin-bottom: 8px;
}

.procstep p {
  font-size: 0.95rem;
  color: #2C2F33;
}

.procstep-no {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: #2D6E9E;
  font-weight: 700;
  margin-bottom: 8px;
}

.ctasec {
  max-width: 1120px;
  margin: 0 auto;
  padding: 74px 24px;
}

.ctasec-box {
  background-color: #26303A;
  border-radius: 6px;
  padding: 44px 46px;
}

.ctasec-box h2 {
  color: #EEEBE3;
  font-size: 1.9rem;
  margin-bottom: 14px;
}

.ctasec-box p {
  color: #EEEBE3;
  max-width: 720px;
  margin-bottom: 24px;
}

.ctasec-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

/* ---------------------------------------------------------
   FOOTER — DIFFUSER FLOOR  .difffloor
   deep NOZZLE-SLATE floor flaring through stepped bands
   --------------------------------------------------------- */

.difffloor {
  background-color: #26303A;
  padding-top: 52px;
  position: relative;
}

.difffloor-flare1 {
  height: 14px;
  background-color: #26303A;
  margin: 0 60px;
  border-radius: 4px 4px 0 0;
}

.difffloor-flare2 {
  height: 12px;
  background-color: #26303A;
  margin: 0 34px;
  border-radius: 4px 4px 0 0;
}

.difffloor-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 40px 24px 0 24px;
  display: grid;
  grid-template-columns: 1.2fr 1.6fr;
  gap: 44px;
}

.difffloor-plate {
  background-color: #E4DFD2;
  border-radius: 5px;
  padding: 24px 26px;
  border-left: 6px solid #2D6E9E;
}

.difffloor-plate h3 {
  color: #2C2F33;
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.difffloor-plate p {
  color: #2C2F33;
  font-size: 0.93rem;
}

.difffloor-links {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  align-content: start;
}

.difffloor-link {
  display: block;
  background-color: #2C3A44;
  color: #EEEBE3;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  text-align: center;
  padding: 18px 6px;
  border-radius: 4px;
  border-bottom: 4px solid #2D6E9E;
  text-decoration: none;
}

.difffloor-link:hover {
  background-color: #2D6E9E;
  text-decoration: none;
}

.difffloor-strip {
  max-width: 1120px;
  margin: 34px auto 0 auto;
  padding: 18px 24px 26px 24px;
  border-top: 2px solid #2C3A44;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  align-items: center;
  color: #C6C4BB;
  font-size: 0.86rem;
}

.difffloor-strip a {
  color: #EEEBE3;
  font-weight: 700;
}

.difffloor-flowglyph {
  color: #2D6E9E;
  font-weight: 700;
}

/* ---------------------------------------------------------
   SCROLL REVEAL — noscript default visible
   --------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.no-js .reveal {
  opacity: 1;
  transform: none;
}

/* ---------------------------------------------------------
   RESPONSIVE
   --------------------------------------------------------- */

@media (max-width: 980px) {
  .testsec-grid {
    grid-template-columns: 1fr;
  }
  .band-calibrated-inner {
    grid-template-columns: 1fr;
  }
  .contactsec-inner {
    grid-template-columns: 1fr;
  }
  .difffloor-inner {
    grid-template-columns: 1fr;
  }
  .runmatrix-run:nth-child(odd),
  .runmatrix-run:nth-child(even) {
    margin-left: 0;
    margin-right: 0;
  }
  .runmatrix-tab {
    margin-left: -20px;
  }
}

@media (max-width: 760px) {
  .conehdr-toggle {
    display: block;
  }
  .conehdr-portholes {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }
  .conehdr-portholes.is-open {
    display: flex;
  }
  .conehdr-port {
    width: 100%;
    height: 60px;
    border-radius: 8px;
    box-shadow: none;
    border: 3px solid #C6C4BB;
  }
  .conehdr-port a {
    font-size: 0.85rem;
  }
  .testsec-title {
    font-size: 2.4rem;
  }
  .svchero h1 {
    font-size: 2.2rem;
  }
  .band-split-note {
    grid-template-columns: 1fr;
  }
  .procsteps {
    grid-template-columns: 1fr;
  }
  .difffloor-links {
    grid-template-columns: repeat(2, 1fr);
  }
  .runmatrix-tab {
    width: 56px;
    font-size: 0.9rem;
  }
}

@media (max-width: 520px) {
  .difffloor-links {
    grid-template-columns: 1fr;
  }
  .testsec-title {
    font-size: 2rem;
  }
}