/* =========================================================
   ZASHEIRA LI — SIGNAL WORKSHOP
   Standalone stylesheet
   ========================================================= */

/* ---------------------------------------------------------
   1. DESIGN TOKENS AND BASE RULES
   --------------------------------------------------------- */
:root {
  --aqua: #58f1d0;
  --aqua-light: #8affdf;
  --brass: #d8b477;
  --ink: #090d11;
  --panel: #0f171c;
  --panel-raised: #18242a;
  --text: #eef7f4;
  --muted: #9dafab;
  --line: rgba(174, 203, 196, 0.25);
  --heading: "Space Grotesk", Arial, sans-serif;
  --body: "Manrope", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--body);
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}

.site-shell {
  position: relative;
  overflow: hidden;
  background: var(--ink);
}

.ambient-noise {
  position: absolute;
  z-index: 10;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image: radial-gradient(rgba(255, 255, 255, 0.23) 0.5px, transparent 0.6px);
  background-size: 5px 5px;
  mix-blend-mode: soft-light;
}

/* ---------------------------------------------------------
   2. REUSABLE TYPE, BUTTON, AND SYSTEM COMPONENTS
   --------------------------------------------------------- */
.eyebrow,
.section-kicker,
.focus-status {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--aqua);
  font: 700 10px var(--heading);
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.section-kicker img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.section-rule {
  position: absolute;
  top: 0;
  left: clamp(25px, 4vw, 70px);
  width: 95px;
  height: 1px;
  background: linear-gradient(90deg, var(--aqua), transparent);
  box-shadow: 0 0 0 3px rgba(88, 241, 208, 0.14);
}

.section-code {
  position: absolute;
  top: 32px;
  right: clamp(25px, 4vw, 70px);
  color: rgba(138, 167, 159, 0.48);
  font: 700 8px var(--heading);
  letter-spacing: 0.14em;
}

.section-code.bottom {
  top: auto;
  bottom: 29px;
}

.signal-button,
.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 17px;
  border: 0;
  background: var(--aqua);
  color: #06100f;
  font: 700 11px var(--heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 160ms cubic-bezier(0.23, 1, 0.32, 1), background 160ms ease;
}

.signal-button:hover,
.header-cta:hover {
  transform: translateY(-2px);
  background: var(--aqua-light);
}

.signal-button:active,
.header-cta:active {
  transform: scale(0.97);
}

/* ---------------------------------------------------------
   3. FIXED SYSTEM RAIL AND SITE HEADER
   --------------------------------------------------------- */
.system-rail {
  position: fixed;
  z-index: 20;
  top: 50%;
  left: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transform: translateY(-50%);
  pointer-events: none;
  mix-blend-mode: screen;
}

.system-rail span {
  color: #89a09c;
  font: 700 7px/1 var(--heading);
  letter-spacing: 0.13em;
  writing-mode: vertical-rl;
}

.system-rail span:last-child {
  color: var(--brass);
}

.system-rail i {
  width: 1px;
  height: 65px;
  background: linear-gradient(var(--aqua), transparent);
}

.system-rail b {
  width: 8px;
  height: 8px;
  border: 1px solid var(--brass);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(216, 180, 119, 0.07);
}

.site-header {
  position: absolute;
  z-index: 30;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  height: 88px;
  padding: 20px clamp(25px, 4vw, 70px);
  border-bottom: 1px solid rgba(228, 247, 241, 0.16);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}

.brand img {
  width: 58px;
  height: 58px;
  margin: -10px;
}

.brand span {
  display: grid;
  gap: 5px;
  line-height: 1;
}

.brand strong {
  font: 700 15px var(--heading);
  letter-spacing: 0.12em;
}

.brand small {
  color: #9aaba8;
  font: 600 8px var(--heading);
  letter-spacing: 0.17em;
}

.desktop-nav {
  display: flex;
  gap: 28px;
  margin-right: 40px;
  margin-left: auto;
}

.desktop-nav a {
  padding: 8px 0;
  color: #aabbb7;
  font: 600 11px var(--heading);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.desktop-nav a:hover,
.desktop-nav a.active {
  color: var(--aqua);
}

.desktop-nav a.active::after {
  display: block;
  width: 4px;
  height: 4px;
  margin: 6px auto -10px;
  border-radius: 50%;
  background: var(--aqua);
  content: "";
}

.menu-button,
.mobile-nav {
  display: none;
}

/* ---------------------------------------------------------
   4. HERO SECTION
   --------------------------------------------------------- */
.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 780px;
  padding: 195px clamp(25px, 9vw, 145px) 80px;
  isolation: isolate;
  overflow: hidden;
}

.hero-visual,
.hero-visual div,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-visual {
  z-index: -3;
}

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

.hero-visual div {
  background:
    linear-gradient(90deg, #090d11 0%, rgba(9, 13, 17, 0.91) 26%, rgba(9, 13, 17, 0.5) 57%, rgba(9, 13, 17, 0.08)),
    linear-gradient(0deg, rgba(9, 13, 17, 0.78), transparent 45%);
}

.hero-grid {
  z-index: -1;
  opacity: 0.32;
  background:
    linear-gradient(rgba(91, 163, 149, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 163, 149, 0.11) 1px, transparent 1px);
  background-size: 9.09% 14.28%;
  mask-image: linear-gradient(90deg, #000, transparent 70%);
}

.hero-copy {
  z-index: 2;
  max-width: 700px;
}

.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--aqua);
  box-shadow: 0 0 0 4px rgba(88, 241, 208, 0.15);
}

.hero-copy h1,
.section-intro h2,
.process-head h2,
.contact-copy h2 {
  margin: 24px 0;
  font: 600 clamp(48px, 6.3vw, 100px) / 0.93 var(--heading);
  letter-spacing: -0.075em;
}

.hero-copy h1 em,
.section-intro em,
.process-head em,
.contact-copy em {
  display: block;
  color: var(--aqua);
  font-style: normal;
  font-weight: 400;
}

.hero-copy p {
  max-width: 475px;
  color: #bacbc6;
  font-size: 16px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 27px;
  margin-top: 37px;
}

.text-button {
  color: #d8e5e2;
  font: 700 11px var(--heading);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.text-button:hover {
  color: var(--aqua);
}

.hero-ring {
  position: absolute;
  z-index: 2;
  top: 190px;
  right: clamp(-70px, 9vw, 120px);
  width: clamp(290px, 35vw, 540px);
  height: clamp(290px, 35vw, 540px);
  border: 1px solid rgba(88, 241, 208, 0.48);
  border-radius: 50%;
  box-shadow: inset 0 0 0 35px rgba(9, 17, 19, 0.09), 0 0 70px rgba(88, 241, 208, 0.06);
  transition: transform 500ms cubic-bezier(0.23, 1, 0.32, 1);
}

.hero-ring::before,
.hero-ring::after {
  position: absolute;
  inset: 7%;
  border: 1px solid rgba(210, 234, 227, 0.23);
  border-radius: 50%;
  content: "";
}

.hero-ring::after {
  inset: 20%;
  border-style: dashed;
  animation: spin 18s linear infinite;
}

.ring-core {
  position: absolute;
  inset: 40%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(216, 180, 119, 0.66);
  border-radius: 50%;
  background: rgba(9, 16, 18, 0.48);
}

.ring-core img {
  width: 106%;
  height: 106%;
}

.label-top,
.label-right {
  position: absolute;
  color: #c4d4d0;
  font: 700 9px var(--heading);
  letter-spacing: 0.14em;
}

.label-top {
  top: 10%;
  left: 12%;
}

.label-right {
  top: 52%;
  right: 5%;
  writing-mode: vertical-rl;
}

.tick {
  position: absolute;
  width: 12px;
  height: 12px;
  border: 2px solid var(--aqua);
  background: #091012;
  transform: rotate(45deg);
}

.tick.one { top: 12%; right: 10%; }
.tick.two { bottom: 14%; left: -6px; border-color: var(--brass); }
.tick.three { right: 11%; bottom: 19%; width: 7px; height: 7px; border: 0; border-radius: 50%; background: var(--aqua); }

.hero-status {
  position: absolute;
  z-index: 3;
  bottom: 36px;
  left: clamp(25px, 4vw, 70px);
  display: flex;
  align-items: center;
  gap: 10px;
  color: #afc1bd;
  font-size: 11px;
}

.hero-status > b {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(88, 241, 208, 0.54);
  color: var(--aqua);
}

.hero-status span {
  display: grid;
  gap: 2px;
}

.hero-status strong { color: white; }
.hero-status small { font-size: 10px; }

.hero-index {
  position: absolute;
  right: clamp(25px, 4vw, 70px);
  bottom: 39px;
  display: grid;
  gap: 4px;
  color: #8ca19d;
  font: 700 9px var(--heading);
  letter-spacing: 0.14em;
  text-align: right;
}

.hero-index strong {
  color: #e9f3f1;
  font-size: 12px;
}

/* ---------------------------------------------------------
   5. OPERATING PRINCIPLE STRIP
   --------------------------------------------------------- */
.intro-strip {
  display: grid;
  grid-template-columns: 1fr minmax(300px, 2.3fr) 80px;
  align-items: center;
  gap: 34px;
  min-height: 180px;
  padding: 38px clamp(25px, 9vw, 145px);
  border-block: 1px solid #d7dfdc;
  background: linear-gradient(115deg, #aebbb8, #7f9693);
  color: #11201f;
}

.intro-strip > span {
  color: #294842;
  font: 700 10px var(--heading);
  letter-spacing: 0.14em;
}

.intro-strip p {
  max-width: 715px;
  margin: 0;
  font: 500 clamp(19px, 2.2vw, 30px) / 1.35 var(--heading);
  letter-spacing: -0.035em;
}

.intro-strip > b {
  display: grid;
  place-items: center;
  justify-self: end;
  width: 54px;
  height: 54px;
  border: 1px solid #7d5733;
}

.strip-logo {
  display: none;
  width: 46px;
  height: 46px;
  object-fit: contain;
}

/* ---------------------------------------------------------
   6. SERVICE MODULES
   --------------------------------------------------------- */
.services-section {
  position: relative;
  padding: 120px clamp(25px, 9vw, 145px) 135px;
  background: var(--panel);
}

.section-intro {
  display: grid;
  grid-template-columns: 1.7fr 0.7fr;
  align-items: end;
  gap: 80px;
  margin-bottom: 68px;
}

.section-intro h2,
.process-head h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 4.8vw, 75px);
}

.section-intro p {
  margin: 0 0 10px;
  color: #9eb0ad;
  font-size: 14px;
  line-height: 1.7;
}

.service-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(40px, 7vw, 110px);
}

.service-list {
  border-top: 1px solid var(--line);
}

.service-tab {
  display: grid;
  grid-template-columns: 55px 1fr 20px;
  align-items: center;
  width: 100%;
  padding: 26px 2px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: #eaf2ef;
  text-align: left;
  transition: padding 200ms ease, background 200ms ease;
}

.service-tab:hover,
.service-tab.selected {
  padding-left: 15px;
  background: rgba(88, 241, 208, 0.05);
}

.service-tab > span {
  color: #b99865;
  font: 600 11px var(--heading);
}

.service-tab strong {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--aqua);
  font: 400 20px var(--heading);
}

.service-tab strong i {
  display: grid;
  gap: 6px;
  color: #eaf2ef;
  font-style: normal;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.service-tab small {
  color: #8da09c;
  font: 400 12px var(--body);
  letter-spacing: 0;
}

.service-tab > b {
  color: #758781;
}

.service-focus {
  position: relative;
  min-height: 380px;
  padding: 35px;
  overflow: hidden;
  border: 1px solid rgba(174, 203, 196, 0.18);
  background: var(--panel-raised);
  clip-path: polygon(0 0, 100% 0, 100% 94%, 94% 100%, 0 100%);
}

.focus-logo {
  position: absolute;
  top: 23px;
  right: 23px;
  width: 44px;
  height: 44px;
  object-fit: contain;
  opacity: 0.82;
}

.focus-status {
  color: #96aaa5;
  font-size: 9px;
}

.focus-icon {
  display: block;
  margin: 55px 0 18px;
  color: var(--aqua);
  font: 400 43px var(--heading);
}

.service-focus h3 {
  margin: 0;
  color: #f0f8f5;
  font: 500 36px var(--heading);
  letter-spacing: -0.06em;
}

.service-focus p {
  max-width: 410px;
  color: #a6b7b4;
  font-size: 13px;
  line-height: 1.75;
}

.focus-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 21px;
}

.focus-tags span {
  padding: 6px 8px;
  border: 1px solid rgba(216, 180, 119, 0.55);
  color: #e2c894;
  font: 600 9px var(--heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.service-focus > a {
  display: inline-block;
  margin-top: 30px;
  color: var(--aqua);
  font: 700 10px var(--heading);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.focus-decoration {
  position: absolute;
  right: -58px;
  bottom: -60px;
  width: 210px;
  height: 210px;
  border: 1px solid rgba(88, 241, 208, 0.22);
  border-radius: 50%;
}

.focus-decoration i {
  position: absolute;
  inset: 16%;
  border: 1px solid rgba(88, 241, 208, 0.16);
  border-radius: 50%;
}

.focus-decoration i:nth-child(2) { inset: 34%; }
.focus-decoration i:nth-child(3) { inset: 51%; border: 0; background: var(--brass); }

/* ---------------------------------------------------------
   7. DIAGNOSTIC CONSOLE
   --------------------------------------------------------- */
.diagnostic-section {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 600px;
  background: #0b1115;
}

.diagnostic-image {
  min-height: 520px;
  overflow: hidden;
}

.diagnostic-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.8);
}

.diagnostic-console {
  padding: 95px clamp(25px, 7vw, 115px) 70px 60px;
}

.diagnostic-console h2 {
  margin: 19px 0;
  font: 600 clamp(35px, 3.5vw, 56px) / 0.98 var(--heading);
  letter-spacing: -0.06em;
}

.diagnostic-console > p {
  max-width: 520px;
  color: #95a8a4;
  font-size: 14px;
  line-height: 1.75;
}

.console-screen {
  max-width: 500px;
  margin-top: 30px;
  padding: 16px;
  border: 1px solid rgba(88, 241, 208, 0.26);
  background: rgba(14, 27, 31, 0.73);
}

.console-screen > div,
.console-screen p {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.console-screen > div {
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(175, 211, 202, 0.16);
  color: #adbdba;
  font: 700 10px var(--heading);
  letter-spacing: 0.1em;
}

.console-screen > div b {
  padding: 4px 6px;
  background: var(--aqua);
  color: #0a1713;
  font-size: 8px;
}

.console-screen p {
  margin: 0;
  padding: 10px 0;
  border-bottom: 1px solid rgba(175, 211, 202, 0.1);
  color: #849590;
  font: 600 9px var(--heading);
  letter-spacing: 0.09em;
}

.console-screen p strong {
  color: var(--aqua);
  font-size: 9px;
}

.console-screen section {
  display: flex;
  gap: 4px;
  padding-top: 15px;
}

.console-screen section i {
  flex: 1;
  height: 3px;
  background: var(--aqua);
}

.console-screen section i:last-child {
  background: #314540;
}

.console-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.console-controls button {
  padding: 9px 10px;
  border: 1px solid rgba(175, 211, 202, 0.26);
  background: transparent;
  color: #acbebb;
  font: 700 9px var(--heading);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.console-controls button:hover,
.console-controls button.active-control {
  border-color: var(--aqua);
  background: var(--aqua);
  color: #071110;
}

/* ---------------------------------------------------------
   8. PROCESS SECTION
   --------------------------------------------------------- */
.process-section {
  position: relative;
  padding: 115px clamp(25px, 9vw, 145px) 130px;
  border-block: 1px solid #c7d1cf;
  background: linear-gradient(135deg, #667c7b, #9aa9a6 70%, #778e8b);
  color: #13201f;
}

.process-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
}

.process-head .section-kicker { color: #244941; }
.process-head h2 { margin-top: 18px; }
.process-head h2 em { display: inline; color: #234e45; }

.process-head > p {
  margin: 0 0 10px;
  color: #274f47;
  font: 600 11px var(--heading);
}

.process-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 65px;
  border-top: 1px solid #435d59;
}

.process-rail article {
  min-height: 210px;
  padding: 23px 28px 10px 0;
  border-right: 1px solid #617a76;
}

.process-rail article + article {
  padding-left: 28px;
}

.process-rail article:last-child { border: 0; }

.process-rail span {
  color: #2c4c47;
  font: 700 11px var(--heading);
  letter-spacing: 0.1em;
}

.process-rail span i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 12px;
  border: 1px solid #795630;
  border-radius: 50%;
  background: rgba(216, 180, 119, 0.24);
}

.process-rail h3 {
  margin: 44px 0 8px;
  font: 500 27px var(--heading);
  letter-spacing: -0.055em;
}

.process-rail p {
  max-width: 260px;
  margin: 0;
  color: #354f4a;
  font-size: 13px;
  line-height: 1.65;
}

/* ---------------------------------------------------------
   9. CONTACT AND INQUIRY FORM
   --------------------------------------------------------- */
.contact-section {
  position: relative;
  z-index: 0;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: clamp(50px, 10vw, 160px);
  min-height: 650px;
  padding: 110px clamp(25px, 9vw, 145px);
  isolation: isolate;
}

.contact-bg,
.contact-shade {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-shade {
  z-index: -1;
  background: linear-gradient(90deg, rgba(8, 14, 17, 0.96), rgba(8, 14, 17, 0.78) 57%, rgba(8, 14, 17, 0.58));
}

.contact-copy h2 {
  font-size: clamp(45px, 5.4vw, 82px);
}

.contact-copy p {
  max-width: 455px;
  color: #a8bbb6;
  font-size: 15px;
  line-height: 1.75;
}

.contact-copy small {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 35px;
  color: #90a6a1;
  font: 600 10px var(--heading);
  letter-spacing: 0.1em;
}

.contact-copy small img {
  width: 17px;
  height: 17px;
  object-fit: contain;
}

.contact-copy small b { color: var(--aqua); }

.contact-form {
  position: relative;
  padding: 34px;
  border: 1px solid rgba(153, 205, 192, 0.28);
  background: rgba(16, 28, 33, 0.84);
  backdrop-filter: blur(12px);
  clip-path: polygon(0 0, 100% 0, 100% 93%, 93% 100%, 0 100%);
}

.contact-form::before {
  position: absolute;
  top: 23px;
  right: 23px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--brass);
  transform: rotate(45deg);
  content: "";
}

.form-logo {
  position: absolute;
  top: 21px;
  right: 36px;
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.contact-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
  color: #a9bbb7;
  font: 700 9px var(--heading);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  resize: vertical;
  border: 1px solid rgba(157, 195, 185, 0.24);
  border-radius: 0;
  background: rgba(7, 14, 17, 0.58);
  color: #e9f7f3;
  font: 400 13px var(--body);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #637874;
}

.contact-form .signal-button {
  width: 100%;
}

.form-message {
  min-height: 18px;
  margin: 14px 0 0;
  color: #d5b87f;
  font-size: 11px;
  line-height: 1.55;
}

.form-message.success { color: #8ff4dc; }

/* ---------------------------------------------------------
   10. FOOTER
   --------------------------------------------------------- */
footer {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  min-height: 100px;
  padding: 27px clamp(25px, 4vw, 70px);
  border-top: 1px solid rgba(157, 195, 185, 0.14);
  background: #071011;
  color: #91a6a0;
  font-size: 11px;
}

footer div {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #cfddda;
  font: 700 10px var(--heading);
  letter-spacing: 0.13em;
}

footer img {
  width: 27px;
  height: 27px;
}

footer p { margin: 0; }

footer a {
  color: var(--aqua);
  font: 700 10px var(--heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------
   11. MOTION
   --------------------------------------------------------- */
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------------------------------------------------------
   12. RESPONSIVE RULES
   --------------------------------------------------------- */
@media (max-width: 800px) {
  .system-rail,
  .desktop-nav,
  .header-cta {
    display: none;
  }

  .site-header {
    height: 73px;
    padding: 16px 20px;
  }

  .menu-button {
    display: grid;
    place-items: center;
    width: 39px;
    height: 39px;
    margin-left: auto;
    border: 1px solid rgba(194, 224, 217, 0.35);
    background: none;
    color: var(--aqua);
    font-size: 17px;
  }

  .mobile-nav {
    position: fixed;
    z-index: 25;
    top: 73px;
    right: 0;
    left: 0;
    padding: 13px 20px 18px;
    border-bottom: 1px solid rgba(194, 224, 217, 0.2);
    background: #0d1519;
  }

  .mobile-nav.open { display: grid; }

  .mobile-nav a {
    padding: 12px 4px;
    color: #dcebe7;
    font: 700 12px var(--heading);
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .hero-section {
    align-items: flex-start;
    min-height: 740px;
    padding: 165px 24px 120px;
  }

  .hero-visual img { object-position: 62% center; }

  .hero-visual div {
    background:
      linear-gradient(90deg, rgba(9, 13, 17, 0.96), rgba(9, 13, 17, 0.78) 68%, rgba(9, 13, 17, 0.22)),
      linear-gradient(0deg, #090d11, transparent 35%);
  }

  .hero-copy h1 { font-size: clamp(48px, 14vw, 77px); }
  .hero-copy p { max-width: 370px; font-size: 14px; }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .hero-ring {
    top: auto;
    right: -113px;
    bottom: 106px;
    width: 270px;
    height: 270px;
    opacity: 0.7;
  }

  .hero-status {
    bottom: 27px;
    left: 24px;
    max-width: 250px;
  }

  .hero-index {
    right: 24px;
    bottom: 29px;
  }

  .intro-strip {
    grid-template-columns: 1fr 45px;
    gap: 18px;
    padding: 32px 24px;
  }

  .intro-strip > span { grid-column: 1 / -1; }
  .intro-strip p { font-size: 19px; }

  .intro-strip > b {
    grid-column: 2;
    grid-row: 2;
    width: 44px;
    height: 44px;
  }

  .strip-logo {
    display: block;
    grid-column: 1;
    grid-row: 2;
  }

  .services-section,
  .process-section {
    padding: 80px 24px;
  }

  .section-intro {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 42px;
  }

  .section-intro h2,
  .process-head h2 {
    font-size: 43px;
  }

  .service-layout { grid-template-columns: 1fr; gap: 31px; }

  .service-tab {
    grid-template-columns: 42px 1fr 20px;
    padding: 20px 0;
  }

  .service-tab strong { gap: 11px; font-size: 18px; }
  .service-tab small { font-size: 11px; }
  .service-focus { min-height: 350px; padding: 28px; }

  .diagnostic-section { grid-template-columns: 1fr; }

  .diagnostic-image {
    min-height: 280px;
    max-height: 340px;
  }

  .diagnostic-console { padding: 64px 24px; }

  .process-head { display: grid; }
  .process-head > p { margin: 0; }

  .process-rail {
    grid-template-columns: 1fr;
    margin-top: 45px;
  }

  .process-rail article,
  .process-rail article + article {
    min-height: 0;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid #506866;
  }

  .process-rail article:last-child { border-bottom: 0; }
  .process-rail h3 { margin: 20px 0 7px; }

  .contact-section {
    grid-template-columns: 1fr;
    gap: 42px;
    padding: 82px 24px;
  }

  .contact-copy h2 { font-size: 55px; }
  .contact-form { padding: 25px; }

  .section-code {
    right: 24px;
    font-size: 7px;
  }

  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 28px 24px;
  }

  footer p { order: 3; }

  footer a {
    position: absolute;
    top: 32px;
    right: 20px;
  }
}

/* ---------------------------------------------------------
   13. REDUCED MOTION PREFERENCE
   --------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .hero-ring,
  .header-cta,
  .signal-button,
  .service-tab {
    transition: none;
  }

  .hero-ring::after {
    animation: none;
  }
}

/* Shared additions for catalog and informational pages */
.catalog-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:16px;margin:24px 25px 0}.catalog-count{color:var(--muted);font:700 10px var(--heading);letter-spacing:.1em;text-transform:uppercase}.footer-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:16px}.footer-links a:hover{color:var(--aqua)}.checkout-policy-bar{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:22px;margin:28px 0 0;padding:18px 22px;border:1px solid var(--line);background:rgba(15,23,28,.72);color:var(--muted);font:700 10px var(--heading);letter-spacing:.1em;text-transform:uppercase}.checkout-policy-bar span{color:var(--brass)}.checkout-policy-bar a:hover{color:var(--aqua)}
@media (max-width: 980px){.desktop-nav{gap:16px;margin-right:20px}.desktop-nav a{font-size:10px}.header-cta{padding:12px 13px}}
@media (max-width: 760px){.footer-links{justify-content:flex-start;margin-top:12px}.catalog-actions{margin-bottom:10px}.checkout-policy-bar{align-items:flex-start;flex-direction:column;gap:12px}}