/* ============================================================
   Obliron Labs — embedded design & consultancy
   Aesthetic: precision lab bench. Dark, technical, restrained.
   Major brand colour is the original sky-blue (#2eb8d8),
   carried through gradients and combinations. Type pairs a
   grotesque display with a mono accent used like silkscreen.
   ============================================================ */

:root {
  /* brand sky-blue, sampled from the original Obliron logo (#2eb8d8) */
  --sky: #2eb8d8;
  /* the major brand colour */
  --sky-bright: #5fd2ee;
  /* lifted highlight */
  --sky-deep: #1f8fb0;
  /* shadowed / deeper blue */
  --sky-soft: #a9e2f1;
  /* pale wash */

  /* keep the old variable names mapped to the blue family so
     every existing rule picks up the new palette */
  --teal: var(--sky);
  --teal-bright: var(--sky-bright);
  --teal-deep: var(--sky-deep);
  --mint: var(--sky-soft);

  /* deep navy-leaning neutrals so the theme reads blue, not grey */
  --ink: #080d14;
  /* page base */
  --ink-2: #0d1622;
  /* raised surface */
  --ink-3: #111d2c;
  /* cards */
  --line: #1c2c3c;
  /* hairlines */
  --line-2: #294056;
  --fog: #7e93a6;
  /* muted text */
  --fog-2: #aabccb;
  --paper: #e7eef5;
  /* primary text */
  --white: #ffffff;

  --signal: var(--sky);
  /* signature blue gradient for accents */
  --grad-sky: linear-gradient(135deg, #2eb8d8 0%, #1f8fb0 55%, #2e7fd8 100%);
  --glow: 0 0 0 1px rgba(46, 184, 216, .40), 0 0 30px -6px rgba(46, 184, 216, .55);

  --maxw: 1180px;
  --gut: clamp(20px, 5vw, 56px);

  --ease: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-io: cubic-bezier(0.77, 0, 0.175, 1);

  --serif: "Spectral", Georgia, serif;
  --sans: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* faint engineering grid behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .25;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

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

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

::selection {
  background: var(--teal);
  color: var(--ink);
}

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section {
  position: relative;
  z-index: 1;
  padding-block: clamp(72px, 11vw, 140px);
}

/* technical eyebrow label, silkscreen style */
.tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.tag::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--teal);
  opacity: .8;
}

h1,
h2,
h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}

.display {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
}

.lede {
  font-size: clamp(1.05rem, 1.9vw, 1.32rem);
  line-height: 1.55;
  color: var(--fog-2);
  font-weight: 400;
  max-width: 56ch;
}

.serif-accent {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--mint);
}

/* ---------- buttons ---------- */
.btn {
  --b: var(--teal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 22px;
  border-radius: 12px;
  border: 1px solid var(--b);
  background: var(--b);
  color: var(--ink);
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 4px 0 var(--teal-deep), 0 6px 12px rgba(8, 13, 20, .3);
  transition: transform 160ms var(--ease), box-shadow 200ms var(--ease), background 200ms var(--ease), border-radius 200ms var(--ease);
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--teal-deep), var(--glow);
}

.btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--teal-deep);
}

.btn .arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5em;
  height: 1.5em;
  flex-shrink: 0;
  transition: transform 220ms var(--ease);
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.btn svg {
  width: 1.25em;
  height: 1.25em;
  display: block;
}

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line-2);
  box-shadow: none;
}

.btn--ghost:hover {
  border-color: var(--teal);
  color: var(--teal-bright);
  box-shadow: none;
}

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--ink) 72%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color 300ms var(--ease), background 300ms var(--ease);
}

.site-head[data-scrolled="true"] {
  border-bottom-color: var(--line);
  background: color-mix(in oklab, var(--ink) 88%, transparent);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

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

/* full wordmark logo (OBLIRON LABS with neuron + circuit accents) */
.brand-logo {
  height: auto;
  width: 168px;
  display: block;
}

.foot-brand .brand-logo {
  height: auto;
  width: 160px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 0.95rem;
  color: var(--fog-2);
  padding: 8px 14px;
  border-radius: 3px;
  position: relative;
  transition: color 180ms var(--ease);
}

.nav-links a:hover {
  color: var(--paper);
}

.nav-links a.is-active {
  color: var(--teal);
}

.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 1px;
  background: var(--teal);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  width: 42px;
  height: 38px;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  width: 18px;
  height: 1.5px;
  background: var(--paper);
  transition: .25s var(--ease);
}

/* ---------- hero ---------- */

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
  flex-wrap: wrap;
}

/* reveal-on-load stagger */
.reveal {
  opacity: 0;
  transform: translateY(14px);
}

.reveal.in {
  opacity: 1;
  transform: none;
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}

@media (prefers-reduced-motion: reduce) {

  .reveal,
  .reveal.in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ---------- product journey and service detail ---------- */

.stage-panel {
  display: grid;
  grid-template-columns: minmax(270px, .78fr) minmax(0, 1.22fr);
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(18px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(130deg, rgba(46, 184, 216, .045), transparent 40%), var(--ink-2);
  scroll-margin-top: 96px;
}

/* ---------- process / timeline ---------- */

.step {
  position: relative;
  background: var(--ink-3);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 28px 24px 26px;
  overflow: hidden;
  transition: border-color 260ms var(--ease), transform 260ms var(--ease);
}

.step:hover {
  border-color: var(--line-2);
  transform: translateY(-3px);
}

/* full-width top accent bar */
.step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--teal);
}

.step .n {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--teal);
  margin-bottom: 14px;
}

.step h3 {
  font-size: 1.12rem;
  margin-bottom: 8px;
}

.step p {
  color: var(--fog);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- product cards ---------- */

.product {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--ink-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 280ms var(--ease), transform 280ms var(--ease);
}

.product:hover {
  border-color: var(--line-2);
  transform: translateY(-4px);
}

/* ---------- platform overview ---------- */
.platform-eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #3b9eff;
}

.platform-section {
  position: relative;
  z-index: 1;
  padding-block: 12px clamp(56px, 8vw, 96px);
}

.products-hero-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 400px);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: clamp(24px, 4vw, 40px);
}

.products-hero-copy {
  display: contents;
}

.products-hero-copy h1 {
  max-width: 14ch;
  margin-top: 18px;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
}

.products-hero-copy h1 {
  grid-column: 1;
  grid-row: 1;
}

.products-hero-copy .lede {
  grid-column: 1 / -1;
  grid-row: 2;
  max-width: none;
  margin-top: 22px;
}

.bharat-mark-icon {
  grid-column: 2;
  grid-row: 1;
  justify-self: end;
  width: 80%;
  height: clamp(96px, 6.72vw, 120px);
  object-fit: cover;
}

.catalogue-marker {
  margin-top: clamp(32px, 5vw, 56px);
  color: #3b9eff;
}

.catalogue-marker::before {
  background: #3b9eff;
}

.design-board {
  position: relative;
  display: grid;
  place-items: center;
  width: 82%;
  height: 74%;
  border: 1px solid var(--line-2);
  background-image: radial-gradient(circle at 8% 10%, var(--line-2) 0 3px, transparent 4px), radial-gradient(circle at 92% 10%, var(--line-2) 0 3px, transparent 4px), radial-gradient(circle at 8% 90%, var(--line-2) 0 3px, transparent 4px), radial-gradient(circle at 92% 90%, var(--line-2) 0 3px, transparent 4px);
}

.design-board::before,
.design-board::after {
  position: absolute;
  width: 16%;
  height: 14%;
  border: 1px solid var(--line);
  content: "";
}

.design-board::before {
  top: 22%;
  left: 14%;
}

.design-board::after {
  right: 14%;
  bottom: 22%;
}

.design-board span {
  padding: 8px 10px;
  border: 1px solid var(--teal-deep);
  color: var(--teal-bright);
  font-family: var(--mono);
  font-size: 11px;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.platform-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-2);
  transition: border-color 280ms var(--ease), transform 280ms var(--ease);
  outline: none;
}

.platform-card:hover,
.platform-card:focus-within {
  border-color: var(--teal);
  transform: translateY(-3px);
}

.platform-product-media {
  position: relative;
  aspect-ratio: 1.42;
  overflow: hidden;
  background: var(--ink-3);
}

.platform-upcoming .platform-product-media {
  display: grid !important;
  place-items: center;
  padding: 10% !important;
  background-color: #101923 !important;
  background-image: repeating-linear-gradient(135deg, transparent 0 14px, rgba(46, 184, 216, .035) 14px 15px) !important;
  background-size: unset !important;
  position: relative;
  flex-direction: unset !important;
  justify-content: unset !important;
}

.platform-upcoming .platform-product-media>.product-status {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  margin: 0;
}

.platform-product-code {
  position: absolute;
  top: 12px;
  left: 15px;
  z-index: 1;
  color: var(--fog);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
}

.platform-product-image {
  position: absolute;
  top: 38px;
  left: 18px;
  width: calc(100% - 36px);
  height: calc(100% - 50px);
  object-fit: contain;
  filter: drop-shadow(0 12px 18px rgba(0, 0, 0, .45));
  transition: opacity 220ms var(--ease);
}

.platform-product-image--fabricated {
  opacity: 0;
}

.platform-card:hover .platform-product-image--fabricated,
.platform-card:focus-within .platform-product-image--fabricated {
  opacity: 1;
}

.platform-card:hover .platform-product-image:not(.platform-product-image--fabricated),
.platform-card:focus-within .platform-product-image:not(.platform-product-image--fabricated) {
  opacity: 0;
}

.platform-card>.platform-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  min-height: 169px;
}

.platform-copy h3 {
  min-height: 2.2em;
}

.platform-spec-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  padding-top: 13px;
  color: var(--teal-bright);
  font-size: 12px;
}

.platform-spec-link::after {
  position: absolute;
  inset: 0;
  content: "";
}

.platform-spec-link:hover {
  color: var(--white);
}

/* label grows when the card is hovered; scaled on an inner span so the
   link's full-card click area (::after) is unaffected */
.platform-spec-link .spec-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transform-origin: left center;
  transition: transform 220ms var(--ease);
}

.platform-card:hover .spec-label,
.platform-card:focus-within .spec-label {
  transform: scale(1.25);
}

@media (prefers-reduced-motion: reduce) {
  .platform-spec-link .spec-label {
    transition: none;
  }
}

.platform-spec-link:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.product-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 8px;
  padding: 3px 7px;
  border: 1px solid var(--teal-deep);
  border-radius: 2px;
  background: rgba(46, 184, 216, .08);
  color: var(--teal-bright);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.4;
  text-transform: uppercase;
}

.platform-copy {
  padding: 15px 16px 17px;
  border-top: 1px solid var(--line);
  background: var(--ink-3);
}

.platform-copy h3 {
  font-size: 1.15rem;
}

.platform-copy p {
  margin: 8px 0 0;
  color: var(--fog);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
}

.platform-placeholder {
  border-style: dashed;
  border-color: var(--line-2);
}

.platform-placeholder:hover {
  border-color: var(--teal);
}

.platform-placeholder-media {
  aspect-ratio: 1.42;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background-color: var(--ink-3);
  background-image: linear-gradient(135deg, transparent 49.5%, rgba(46, 184, 216, .055) 50%, transparent 50.5%);
  background-size: 18px 18px;
}

.empty-product-icon {
  display: grid;
  place-items: center;
  width: 64px;
  aspect-ratio: 1;
  border: 1px dashed var(--fog);
  color: var(--teal-bright);
}

.empty-product-icon span {
  position: relative;
  display: block;
  width: 24px;
  height: 24px;
}

.empty-product-icon span::before,
.empty-product-icon span::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 1px;
  background: currentColor;
  transform: translate(-50%, -50%);
}

.empty-product-icon span::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.placeholder-status {
  color: var(--teal-bright);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
}

.platform-placeholder .platform-copy a {
  color: var(--teal-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.platform-placeholder .platform-copy a:hover {
  color: var(--white);
}

.platform-specs {
  padding-top: 0;
}

.platform-spec {
  padding-block: clamp(42px, 7vw, 82px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 96px;
}

.platform-spec-copy h2 {
  margin-top: 8px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.platform-spec-copy>p {
  max-width: 62ch;
  margin: 18px 0 22px;
  color: var(--fog-2);
}

.platform-spec-copy {
  display: flow-root;
}

.platform-spec-visual {
  position: relative;
  float: right;
  width: min(42%, 520px);
  aspect-ratio: 1.3;
  margin: 0 0 22px 32px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--ink-2);
}

.platform-spec-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 12px;
  object-fit: contain;
  transition: opacity 220ms var(--ease);
}

.platform-spec-visual .platform-product-image--fabricated {
  opacity: 0;
}

.platform-spec-visual:hover .platform-product-image--fabricated {
  opacity: 1;
}

.platform-spec-visual:hover .platform-product-image:not(.platform-product-image--fabricated) {
  opacity: 0;
}

.platform-spec-features-heading {
  clear: both;
}

.spec-caption {
  display: block;
  margin-bottom: 8px;
  color: var(--fog);
  font-size: 12px;
}

.platform-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  color: var(--fog-2);
  font-size: .94rem;
}

.platform-features li {
  position: relative;
  padding: 10px 0 10px 16px;
  border-top: 1px solid var(--line);
}

.platform-features li::before {
  position: absolute;
  top: 18px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--teal);
  content: "";
}

.enquiry-picker {
  margin-top: 24px;
  padding: 18px;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  background: var(--ink-3);
}

.enquiry-picker h3 {
  margin: 0 0 14px;
  font-size: 1.05rem;
}

.enquiry-picker-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.enquiry-picker .field {
  min-width: 0;
}

.enquiry-picker label {
  display: block;
  margin-bottom: 6px;
  color: var(--fog-2);
  font-size: .92rem;
}

.enquiry-picker select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  background: var(--ink-2);
  color: var(--paper);
  font: inherit;
}

.enquiry-picker select:focus-visible {
  outline: 2px solid var(--teal-bright);
  outline-offset: 2px;
}

.enquiry-picker option {
  background: var(--ink-2);
  color: var(--paper);
}

.enquiry-picker .btn {
  text-transform: none;
  letter-spacing: 0;
}

.enquire {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--teal);
  padding: 11px 18px;
  border-radius: 12px;
  border: 1px solid var(--teal);
  transition: transform 160ms var(--ease), box-shadow 200ms var(--ease);
}

.enquire:hover {
  box-shadow: var(--glow);
}

.enquire:active {
  transform: scale(0.975);
}

.enquire .arrow {
  transition: transform 220ms var(--ease);
}

.enquire:hover .arrow {
  transform: translateX(3px);
}

/* ---------- contact ---------- */

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fog-2);
  margin-bottom: 8px;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  padding: 13px 15px;
  transition: border-color 200ms var(--ease), box-shadow 200ms var(--ease);
}

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

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(46, 184, 216, .14);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #5b6b76;
}

.prefill-note {
  display: none;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--mint);
  background: linear-gradient(160deg, rgba(46, 184, 216, .1), transparent);
  border: 1px solid var(--teal-deep);
  border-radius: 5px;
  padding: 14px 16px;
  margin-bottom: 24px;
}

.form-status {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 13px;
  min-height: 20px;
}

.form-status:empty {
  display: none;
}

.form-status.err {
  color: #ff8a8a;
}

/* ---------- footer ---------- */
.site-foot {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding-block: 56px 40px;
  background: var(--ink-2);
}

.foot-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.foot-brand {
  max-width: 34ch;
}

.foot-brand p {
  color: var(--fog);
  font-size: 0.92rem;
  margin: 16px 0 0;
}

.foot-cols {
  display: flex;
  gap: clamp(36px, 6vw, 80px);
  flex-wrap: wrap;
}

.foot-col h4 {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fog);
  margin: 0 0 16px;
  font-weight: 500;
}

.foot-col a {
  display: block;
  color: var(--fog-2);
  font-size: 0.94rem;
  padding: 5px 0;
  transition: color 160ms var(--ease);
}

.foot-col a:hover {
  color: var(--teal);
}

.foot-bot {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fog);
  letter-spacing: 0.04em;
}

/* ---------- page hero (interior pages) ---------- */
.page-hero {
  padding-top: clamp(56px, 8vw, 96px);
  padding-bottom: clamp(36px, 5vw, 56px);
  position: relative;
}

.page-hero .lede {
  margin-top: 22px;
}


/* ---------- responsive ---------- */
@media (max-width: 980px) {
  

  

  

  

  .stage-panel {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 18px;
    padding: 20px;
  }

  

  .products-hero-row {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 36vw);
    column-gap: clamp(20px, 4vw, 40px);
  }

  

  

  

  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  

  

  

  

  
}

@media (max-width: 720px) {

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  .stage-panel {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 18px;
  }

  

  .nav-links,
  .nav-cta .btn {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-head[data-open="true"] .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--ink-2);
    border-bottom: 1px solid var(--line);
    padding: 12px var(--gut) 22px;
    gap: 2px;
  }

  .site-head[data-open="true"] .nav-links a {
    padding: 13px 4px;
  }

  

  .products-hero-row {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    row-gap: 20px;
  }

  .products-hero-copy h1 {
    grid-column: 1;
    grid-row: 1;
  }

  .products-hero-copy .lede {
    grid-column: 1;
    grid-row: 3;
    margin-top: 0;
  }

  .bharat-mark-icon {
    grid-column: 1;
    grid-row: 2;
    justify-self: start;
    width: min(80%, 320px);
    height: auto;
    aspect-ratio: 16 / 9;
  }

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

  .enquiry-picker-fields {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .platform-features {
    grid-template-columns: 1fr;
  }

  .platform-spec-visual {
    float: none;
    width: min(100%, 480px);
    aspect-ratio: 1.55;
    margin: 0 0 22px;
  }

  

  

  

  

  

  

  

  
  

  

  

  

  

  
  

  

  

  
  

  

  
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  
  

  

  
  

  
  

  

  
  

  

  
}

/* ---------- closing call-to-action boxes (Services, Platforms, Platform details) ---------- */
.cta-section {
  position: relative;
  z-index: 1;
  padding: 48px 0 88px;
}

.cta-section .wrap {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.cta-box {
  border: 1px solid #1c2836;
  background: #0f1620;
  border-radius: 8px;
  padding: clamp(28px, 5vw, 48px);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: center;
  justify-content: space-between;
}

.cta-copy {
  flex: 1 1 420px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #3b9eff;
}

.cta-copy h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.125rem);
  line-height: 1.15;
}

.cta-copy p {
  margin: 0;
  font-size: 16px;
  color: #95a3b3;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* narrow desktops (just above the mobile menu breakpoint): tighter nav so
   "About Us" and "Contact Us" stay on one line */
@media (min-width: 981px) and (max-width: 1120px) {
  .nav { gap: 16px; }
  .nav-links a { padding: 8px 8px; }
  .nav-links a.is-active::after { left: 8px; right: 8px; }
}

/* ---------- floating Obliron symbol (Home hero, 404 page); links to About ----------
   The link drifts away from the pointer ([data-dodge] in js/main.js), the image bobs. */
.hero-mark {
  position: absolute;
  z-index: 3;
  top: 22px;
  left: 24px;
  display: block;
  padding: 8px;
  border-radius: 14px;
  transition: transform 1400ms cubic-bezier(0.22, 1, 0.36, 1);   /* slow, soft drift */
}

.hero-mark img {
  display: block;
  width: auto;
  height: clamp(84px, 12vh, 118px);
  filter: drop-shadow(0 0 10px rgba(46, 184, 216, 0.55)) drop-shadow(0 6px 14px rgba(0, 0, 0, 0.6));
  animation: hero-mark-float 4.5s ease-in-out infinite;
}

.hero-mark:hover img,
.hero-mark:focus-visible img {
  filter: drop-shadow(0 0 16px rgba(95, 210, 238, 0.85)) drop-shadow(0 6px 14px rgba(0, 0, 0, 0.6));
}

.hero-mark:focus-visible {
  outline: 2px solid #8cc8ff;
  outline-offset: 2px;
}

@keyframes hero-mark-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-7px) rotate(-2deg); }
}

@media (max-width: 720px) {
  .hero-mark { top: 12px; left: 12px; padding: 6px; }
  .hero-mark img { height: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-mark img { animation: none; }
  .hero-mark { transition: none; }
}

/* ---------- not-found page (404) ---------- */
.not-found {
  position: relative;
  z-index: 1;
  padding-bottom: clamp(56px, 8vh, 96px);
  text-align: center;
}

/* phones: heading, photo, then text, stacked */
.nf-head {
  padding-top: clamp(72px, 12vh, 120px);
  padding-bottom: 24px;
}

.nf-head .tag {
  font-size: 24px;
  letter-spacing: .18em;
}

.nf-head .tag::before {
  width: 40px;
}

@media (max-width: 520px) {
  .nf-head .tag { font-size: 17px; letter-spacing: .12em; }
  .nf-head .tag::before { display: none; }
}

/* floating symbol: phones keep it in the page's top-left corner;
   wider screens line it up with the heading, at the content's left edge */
.nf-title .hero-mark {
  top: 12px;
  left: 12px;
}

@media (min-width: 768px) {
  .nf-title {
    position: relative;
  }

  .nf-title .hero-mark {
    top: 0;
    bottom: 0;
    /* content edge sits (side margin + gutter) in from the page edge; move half of that outward */
    left: calc(-0.5 * (max(0px, (100vw - var(--maxw)) / 2) + var(--gut)));
    display: flex;
    align-items: center;
  }
}

.nf-head h1 {
  margin-top: 18px;
  font-size: clamp(2.8rem, 6vw, 5rem);
}

.nf-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 2000 / 1116;
  overflow: hidden;
}

.nf-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(.62) saturate(.85);
}

.nf-visual::before {
  position: absolute;
  inset: 0;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  content: "";
  -webkit-mask-image: radial-gradient(ellipse 80% 85% at center, transparent 70%, #000 100%);
  mask-image: radial-gradient(ellipse 80% 85% at center, transparent 70%, #000 100%);
}

.nf-visual::after {
  position: absolute;
  inset: 0;
  /* eased fades (many stops) so the edge of a fade never shows as a hard line */
  background:
    linear-gradient(90deg, var(--ink) 0%, rgba(8, 13, 20, .82) 2.5%, rgba(8, 13, 20, .55) 6%, rgba(8, 13, 20, .28) 10%, rgba(8, 13, 20, .1) 14%, transparent 18%, transparent 82%, rgba(8, 13, 20, .1) 86%, rgba(8, 13, 20, .28) 90%, rgba(8, 13, 20, .55) 94%, rgba(8, 13, 20, .82) 97.5%, var(--ink) 100%),
    linear-gradient(180deg, var(--ink) 0%, rgba(8, 13, 20, .5) 5%, rgba(8, 13, 20, .15) 10%, transparent 14%, transparent 78%, rgba(8, 13, 20, .2) 85%, rgba(8, 13, 20, .6) 93%, var(--ink) 100%);
  content: "";
}

.nf-foot {
  margin-top: clamp(20px, 3vw, 40px);
}

/* wider screens: one screen tall, photo fills it, all text on top of the photo */
@media (min-width: 768px) {
  .not-found {
    padding-bottom: 0;
  }

  .nf-hero {
    position: relative;
    height: 100vh;
    height: 100svh;
    min-height: 600px;
    overflow: hidden;
  }

  .nf-visual {
    position: absolute;
    inset: 0;
    aspect-ratio: auto;
  }

  .nf-visual img {
    object-position: 50% 45%;
  }

  .nf-visual::before {
    -webkit-mask-image: linear-gradient(180deg, transparent 70%, #000 100%);
    mask-image: linear-gradient(180deg, transparent 70%, #000 100%);
  }

  .nf-visual::after {
    background:
      radial-gradient(ellipse 42% 26% at 50% 62%, rgba(8, 13, 20, .76) 0%, rgba(8, 13, 20, .64) 30%, rgba(8, 13, 20, .42) 55%, rgba(8, 13, 20, .2) 75%, rgba(8, 13, 20, .07) 90%, transparent 100%),
      linear-gradient(90deg, var(--ink) 0%, rgba(8, 13, 20, .82) 2.5%, rgba(8, 13, 20, .55) 6%, rgba(8, 13, 20, .28) 10%, rgba(8, 13, 20, .1) 14%, transparent 18%, transparent 82%, rgba(8, 13, 20, .1) 86%, rgba(8, 13, 20, .28) 90%, rgba(8, 13, 20, .55) 94%, rgba(8, 13, 20, .82) 97.5%, var(--ink) 100%),
      linear-gradient(180deg, var(--ink) 0%, rgba(8, 13, 20, .85) 8%, rgba(8, 13, 20, .72) 18%, rgba(8, 13, 20, .45) 28%, rgba(8, 13, 20, .2) 36%, rgba(8, 13, 20, .06) 42%, transparent 48%, transparent 72%, rgba(8, 13, 20, .1) 78%, rgba(8, 13, 20, .3) 84%, rgba(8, 13, 20, .6) 90%, rgba(8, 13, 20, .85) 95%, var(--ink) 100%);
  }

  .nf-head,
  .nf-foot {
    position: absolute;
    left: 0;
    right: 0;
    z-index: 2;
    margin: 0 auto;
    text-shadow: 0 2px 24px rgba(8, 13, 20, .85);
  }

  .nf-head {
    top: 0;
    padding-top: clamp(48px, 8vh, 110px);
  }

  .nf-foot {
    top: 62%;
    transform: translateY(-50%);
  }
}

.nf-line {
  margin: 0;
  color: var(--paper);
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -.02em;
  line-height: 1.2;
}

.nf-help {
  margin: 16px 0 28px;
  color: var(--fog-2);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
}