/* ==========================================================================
   AmpIQ — shared design system
   "Engineered precision": dark-dominant navy base, blueprint hairlines,
   monospace measurement labels, the pink-to-blue gradient as a charged accent.
   Single source of truth across index, incentives, and tesla pages.
   ========================================================================== */

:root {
  /* Brand */
  --pink: #ed4e93;
  --purple: #a855f7;
  --blue: #3b82f6;
  --grad: linear-gradient(135deg, var(--pink), var(--purple), var(--blue));
  --grad-soft: linear-gradient(135deg, rgba(237, 78, 147, 0.18), rgba(168, 85, 247, 0.16), rgba(59, 130, 246, 0.18));

  /* Surfaces (dark-dominant) */
  --navy: #070d1f;
  --navy-1: #0a1124;
  --navy-2: #0d1730;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-strong: rgba(255, 255, 255, 0.06);

  /* Ink */
  --text: #f4f7fc;
  --text-muted: rgba(244, 247, 252, 0.66);
  --text-faint: rgba(244, 247, 252, 0.42);

  /* Lines */
  --line: rgba(255, 255, 255, 0.1);
  --line-strong: rgba(255, 255, 255, 0.16);

  /* Type */
  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Metrics */
  --max-width: 1200px;
  --gutter: clamp(1.1rem, 4vw, 2.5rem);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;
  --shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--navy);
  color: var(--text);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Blueprint background: fine grid + radial glow + grain, all fixed and behind. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(circle at 50% 18%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 18%, #000 0%, transparent 78%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
}

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

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

::selection {
  background: rgba(168, 85, 247, 0.4);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- Layout primitives -------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.section + .section {
  border-top: 1px solid var(--line);
}

/* Atmospheric color wash anchored to specific sections. */
.glow {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.glow::before,
.glow::after {
  content: "";
  position: absolute;
  width: 44vw;
  height: 44vw;
  border-radius: 50%;
  filter: blur(130px);
  opacity: 0.5;
}

.glow::before {
  top: -16vw;
  left: -10vw;
  background: rgba(237, 78, 147, 0.32);
}

.glow::after {
  bottom: -20vw;
  right: -12vw;
  background: rgba(59, 130, 246, 0.3);
}

.section > .container {
  position: relative;
  z-index: 1;
}

/* ---- Type & labels ------------------------------------------------------ */

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 {
  font-size: clamp(2.6rem, 6.4vw, 4.9rem);
}

h2 {
  font-size: clamp(2.05rem, 4.4vw, 3.4rem);
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  letter-spacing: -0.015em;
}

p {
  color: var(--text-muted);
}

strong {
  color: var(--text);
}

.lead {
  font-size: clamp(1.08rem, 1.6vw, 1.3rem);
  color: var(--text-muted);
  max-width: 56ch;
}

/* Monospace measurement label, the signature "spec-sheet" device. */
.label {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.label::before {
  content: "";
  width: 1.6rem;
  height: 1px;
  background: var(--grad);
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Section heading block */
.heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(1rem, 3vw, 3rem);
  align-items: end;
  margin-bottom: clamp(2.4rem, 5vw, 4rem);
}

.heading h2 {
  margin-top: 1rem;
  max-width: 18ch;
}

.heading .lead {
  padding-bottom: 0.4rem;
}

/* ---- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1;
  padding: 0.95rem 1.55rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}

.btn svg {
  width: 1.05em;
  height: 1.05em;
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 14px 36px rgba(168, 85, 247, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 48px rgba(168, 85, 247, 0.48);
}

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

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.4);
  background: var(--panel);
  transform: translateY(-2px);
}

/* ---- Navigation --------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem var(--gutter);
  transition: padding 0.3s var(--ease);
}

.nav-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0.65rem 0.65rem 1.1rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
}

.nav.scrolled .nav-inner {
  background: rgba(7, 13, 31, 0.72);
  border-color: var(--line);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
}

.nav-logo img {
  height: 30px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}

.nav-links a:not(.btn) {
  font-size: 0.94rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-links a:not(.btn):hover {
  color: var(--text);
}

.nav-links .btn {
  padding: 0.72rem 1.3rem;
  font-size: 0.92rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile fullscreen menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.4rem;
  padding: var(--gutter);
  background: rgba(7, 13, 31, 0.97);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu a:not(.btn) {
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.mobile-menu .label {
  margin-bottom: 0.5rem;
}

.mobile-menu .btn {
  margin-top: 1rem;
  align-self: flex-start;
}

/* ---- Hero --------------------------------------------------------------- */

.hero {
  padding-top: clamp(8rem, 16vw, 12rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
  overflow: hidden;
}

.hero-eyebrow {
  margin-bottom: 1.6rem;
}

.hero h1 {
  max-width: 17ch;
}

.hero h1 .charge {
  position: relative;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lead {
  margin-top: 1.6rem;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.3rem;
}

.hero-spec {
  margin-top: 3.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.hero-spec div {
  padding: 1.3rem 1.4rem;
}

.hero-spec div + div {
  border-left: 1px solid var(--line);
}

.hero-spec dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.hero-spec dd {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--text);
}

/* ---- Orchestrator centerpiece ------------------------------------------ */

.orchestrator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: center;
}

.orchestrator-copy h2 {
  margin: 1rem 0 1.4rem;
  max-width: 16ch;
}

.orchestrator-copy p + p {
  margin-top: 1rem;
}

.assembly {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem;
}

.assembly-core {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  background: var(--grad);
  color: #fff;
  box-shadow: 0 18px 50px rgba(168, 85, 247, 0.4);
}

.assembly-core .label {
  color: rgba(255, 255, 255, 0.85);
}

.assembly-core .label::before {
  background: rgba(255, 255, 255, 0.7);
}

.assembly-core strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: #fff;
  margin-top: 0.3rem;
}

.tile {
  position: relative;
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.tile:hover {
  border-color: var(--line-strong);
  background: var(--panel-strong);
}

.tile span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-faint);
  margin-bottom: 0.4rem;
}

/* ---- Card grids (services, why, questions, verticals) ------------------- */

.grid {
  display: grid;
  gap: 1.1rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card {
  position: relative;
  padding: clamp(1.5rem, 2.4vw, 2rem);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s var(--ease);
}

.card:hover {
  border-color: var(--line-strong);
  background: var(--panel-strong);
  transform: translateY(-3px);
}

/* Corner-tick detail, top-left, drawn with the gradient. */
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 16px;
  height: 16px;
  border-top: 2px solid transparent;
  border-left: 2px solid transparent;
  border-image: var(--grad) 1;
  border-top-left-radius: var(--radius);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover::before {
  opacity: 1;
}

.card .index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1rem;
}

.card .index b {
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  font-weight: 700;
}

.card h3 {
  margin-bottom: 0.7rem;
}

.card p {
  font-size: 0.98rem;
}

/* ---- Questions section (fear -> answer) --------------------------------- */

.questions {
  display: grid;
  gap: 1rem;
}

.qa {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: start;
  padding: clamp(1.4rem, 2.5vw, 2rem) 0;
  border-top: 1px solid var(--line);
}

.qa:last-child {
  border-bottom: 1px solid var(--line);
}

.qa .q {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.2vw, 1.75rem);
  letter-spacing: -0.015em;
  color: var(--text);
  line-height: 1.12;
}

.qa .q::before {
  content: "“";
  color: var(--pink);
  margin-right: 0.1em;
}

.qa .q::after {
  content: "”";
  color: var(--blue);
}

.qa .a {
  font-size: 1.02rem;
}

.questions-close {
  margin-top: 2.4rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: -0.02em;
  max-width: 30ch;
  color: var(--text);
}

/* ---- Three-layer cake (incentives) -------------------------------------- */

.layers {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.layer {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: center;
  padding: 1.4rem 1.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.layer::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--grad);
}

.layer-num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  color: transparent;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
}

.layer h3 {
  margin-bottom: 0.3rem;
}

.layer p {
  font-size: 0.96rem;
}

.layer-stack-1 {
  margin-left: 0;
}
.layer-stack-2 {
  margin-left: clamp(0px, 3vw, 2.2rem);
}
.layer-stack-3 {
  margin-left: clamp(0px, 6vw, 4.4rem);
}

/* ---- Callout / note ----------------------------------------------------- */

.note {
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--grad-soft);
  font-size: 0.92rem;
  color: var(--text-muted);
}

.note strong {
  color: var(--text);
}

/* ---- Split feature (tesla teaser / why) --------------------------------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
}

.panel {
  padding: clamp(1.6rem, 3vw, 2.4rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  position: relative;
  overflow: hidden;
}

.panel.accent {
  background:
    radial-gradient(circle at 0% 0%, rgba(237, 78, 147, 0.16), transparent 45%),
    radial-gradient(circle at 100% 100%, rgba(59, 130, 246, 0.16), transparent 45%),
    var(--panel-strong);
}

.checklist {
  list-style: none;
  display: grid;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.checklist li {
  position: relative;
  padding-left: 1.9rem;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--grad);
}

/* ---- About -------------------------------------------------------------- */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: stretch;
}

.about-card {
  padding: clamp(1.8rem, 3vw, 2.6rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
}

.about-card blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 18ch;
  margin-bottom: 1.4rem;
}

.about-side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.6rem;
  padding: clamp(1.6rem, 3vw, 2.2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 100% 0%, rgba(168, 85, 247, 0.2), transparent 50%),
    var(--panel-strong);
}

.about-side img {
  width: clamp(96px, 16vw, 130px);
}

/* ---- CTA band ----------------------------------------------------------- */

.cta {
  position: relative;
  border-radius: var(--radius-lg);
  padding: clamp(2.2rem, 5vw, 4rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 12% 20%, rgba(237, 78, 147, 0.28), transparent 42%),
    radial-gradient(circle at 88% 80%, rgba(59, 130, 246, 0.26), transparent 42%),
    linear-gradient(135deg, var(--navy-1), var(--navy-2));
  border: 1px solid var(--line-strong);
}

.cta h2 {
  max-width: 16ch;
  margin: 1rem 0 1.2rem;
}

.cta p {
  max-width: 50ch;
  margin-bottom: 2rem;
}

/* ---- Footer ------------------------------------------------------------- */

footer {
  padding-block: clamp(2.5rem, 5vw, 4rem) 3rem;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  align-items: flex-start;
}

.footer-brand img {
  height: 30px;
  width: auto;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.92rem;
  max-width: 34ch;
}

.footer-cols {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 1rem;
  font-weight: 500;
}

.footer-col a,
.footer-col span {
  display: block;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-base {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.86rem;
  color: var(--text-faint);
}

/* ---- Media (photography) ------------------------------------------------ */

/* Framed photo: hairline border, rounded, with the gradient corner-tick. */
.media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--navy-1);
  isolation: isolate;
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  z-index: 3;
  width: 18px;
  height: 18px;
  border-top: 2px solid transparent;
  border-left: 2px solid transparent;
  border-image: var(--grad) 1;
  border-top-left-radius: var(--radius);
}

/* Duotone: desaturate the photo, then tint it through the brand gradient. */
.media-duotone img {
  filter: grayscale(1) contrast(1.04) brightness(0.94);
}

.media-duotone::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: var(--grad);
  mix-blend-mode: color;
  opacity: 0.62;
  pointer-events: none;
}

/* Monospace caption pinned to the bottom of a framed photo. */
.media-cap {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  width: 100%;
  margin: 0;
  padding: 1.4rem 1rem 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(244, 247, 252, 0.92);
  background: linear-gradient(to top, rgba(7, 13, 31, 0.82), transparent);
}

/* Full-bleed treated photo behind a section, kept legible with a navy wash. */
.section.has-bg {
  overflow: hidden;
  isolation: isolate;
}

.section-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.section-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) brightness(0.55);
}

.section-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad);
  mix-blend-mode: color;
  opacity: 0.5;
}

.section-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 13, 31, 0.82), rgba(7, 13, 31, 0.92));
}

/* Hero two-column: copy left, treated photo right. */
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: stretch;
}

.hero-media {
  min-height: 400px;
}

/* Two stacked treated panels in a hero column. */
.hero-media-duo {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 0.9rem;
  min-height: 440px;
}

.hero-media-duo .media {
  min-height: 0;
}

.hero-media-duo .media-cap {
  letter-spacing: 0.14em;
  padding: 1rem 0.8rem 0.6rem;
}

/* Photo header inside a card, flush to the card edges. */
.card-media {
  position: relative;
  height: 190px;
  margin: calc(-1 * clamp(1.5rem, 2.4vw, 2rem)) calc(-1 * clamp(1.5rem, 2.4vw, 2rem)) clamp(1.25rem, 2vw, 1.6rem);
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease);
}

.card:hover .card-media img {
  transform: scale(1.04);
}

/* Tesla teaser aside: framed photo over the checklist panel. */
.tesla-aside {
  display: grid;
  gap: 1.1rem;
}

.tesla-aside .media {
  height: clamp(200px, 26vw, 300px);
}

/* ---- Motion ------------------------------------------------------------- */

/* Scroll reveal: only hidden when JS is active (graceful no-JS fallback). */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero page-load stagger via pure CSS (works without JS). */
@keyframes load-in {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.load > * {
  animation: load-in 0.8s var(--ease) both;
}

.load > *:nth-child(1) { animation-delay: 0.05s; }
.load > *:nth-child(2) { animation-delay: 0.15s; }
.load > *:nth-child(3) { animation-delay: 0.25s; }
.load > *:nth-child(4) { animation-delay: 0.35s; }
.load > *:nth-child(5) { animation-delay: 0.45s; }
.load > *:nth-child(6) { animation-delay: 0.55s; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .load > * {
    animation: none;
  }
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- Responsive --------------------------------------------------------- */

@media (max-width: 980px) {
  .heading,
  .hero-grid,
  .orchestrator-grid,
  .split,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .heading {
    align-items: start;
  }

  .hero-media {
    min-height: 260px;
  }

  .hero-media-duo {
    grid-template-rows: none;
    grid-template-columns: 1fr 1fr;
    min-height: 220px;
  }

  .qa {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }
}

@media (max-width: 620px) {
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-spec {
    grid-template-columns: 1fr;
  }

  .hero-spec div + div {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .hero-actions .btn {
    width: 100%;
  }

  .layer-stack-2,
  .layer-stack-3 {
    margin-left: 0;
  }
}