:root {
  /* ── Brand palette (client-supplied) ─────────────────────────── */
  --color-charcoal: #eef2f6;
  --color-charcoal-elev: #dbe6ef;
  --color-charcoal-elev-2: #e1e8ef;
  --color-charcoal-elev-3: #f5f8fb;
  --color-charcoal-elev-4: #e8eef4;
  --color-navy: #0b3b66;
  --color-navy-deep: #08253f;
  --color-navy-tint: #e4edf5;
  --color-navy-blue: #1d2e9f;
  --color-ocean: #59b9e8;
  --color-ocean-bright: #8bd8f4;
  --color-ocean-dim: #2f789f;
  --color-sand: #e9e6df;
  --color-slate: #6f8190;
  --color-slate-strong: #3f5362;
  --color-ink: #102433;
  --color-on-dark: #ffffff;
  --color-line: rgba(16, 36, 51, 0.14);
  --color-line-strong: rgba(16, 36, 51, 0.24);
  --color-glow: rgba(89, 185, 232, 0.28);
  --color-white: #ffffff;
  --color-whatsapp: #25d366;
  --color-whatsapp-2: #3fdd7c;
  /* ── Semantic aliases ────────────────────────────────────────── */
  --color-paper: var(--color-charcoal);
  /* ── Typography ──────────────────────────────────────────────── */
  --font-display: "Anton", Impact, sans-serif;
  --font-body: "Archivo", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --fs-hero: clamp(2.6rem, 6.2vw, 5.4rem);
  --fs-h2: clamp(1.7rem, 3.4vw, 2.6rem);
  --fs-h3: clamp(1.1rem, 1.8vw, 1.35rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-label: 0.75rem;
  /* ── Spacing (4pt scale) ─────────────────────────────────────── */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;
  --radius: 14px;
  --radius-lg: 24px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.35s;

  --container: 1280px;
  --header-h: 116px;
  --topbar-h: 36px;
  --navbar-h: 80px;
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
html,
body {
  font-family: var(--font-body);
  background: var(--color-paper);
  color: var(--color-ink);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}
img,
svg {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
ul,
ol {
  list-style: none;
}
button {
  font: inherit;
}
::selection {
  background: var(--color-ocean);
  color: var(--color-charcoal);
}
:is(a, button, input, select, textarea):focus-visible {
  outline: 2px solid var(--color-ocean);
  outline-offset: 3px;
}
/* ═══ Layout primitives ══════════════════════════════════════════ */
.page {
  margin-top: var(--header-h);
}
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-5);
}
section {
  padding-block: clamp(72px, 9vw, 132px);
}
.section-title {
  font-family: var(--font-body);
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.98;
  text-transform: none;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.7);
}
.section-title .accent {
  color: var(--color-navy);
}
.section-head {
  max-width: 820px;
  margin-bottom: var(--sp-7);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 15px 30px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-small);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  cursor: pointer;
  white-space: nowrap;
  transition:
    transform var(--dur) var(--ease-out),
    background var(--dur),
    color var(--dur),
    border-color var(--dur),
    box-shadow var(--dur) var(--ease-out);
}
.btn-primary {
  background: var(--color-navy);
  color: #ffffff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.35);
}
.btn-primary:hover {
  background: #155888;
  box-shadow:
    0 4px 12px rgba(16, 36, 51, 0.06),
    0 1px 3px rgba(11, 59, 102, 0.08);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.35);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 2px rgba(16, 36, 51, 0.04);
}
.btn-ghost:hover {
  background: var(--color-ocean);
  color: var(--color-navy-deep);
  border-color: var(--color-ocean);
  box-shadow:
    0 4px 12px rgba(16, 36, 51, 0.06),
    0 1px 3px rgba(11, 59, 102, 0.08);
}
.btn-ghost:active {
  transform: translateY(1px);
  background: rgba(89, 185, 232, 0.25);
  border-color: var(--color-ocean-bright);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.35);
}
.btn-ghost-2 {
  border-color: var(--color-line-strong);
  color: var(--color-ink);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.35);
}
.btn-ghost-2:hover {
  border-color: var(--color-ocean);
  color: var(--color-white);
  background: var(--color-ocean);
  box-shadow:
    0 4px 12px rgba(16, 36, 51, 0.1),
    0 1px 3px rgba(11, 59, 102, 0.1);
}
.btn-ghost-2:active {
  transform: translateY(1px);
  border-color: var(--color-ocean);
  color: var(--color-white);
  background: var(--color-ocean);
  box-shadow: inset 0 4px 8px rgba(0, 0, 0, 0.35);
}
.arrow-link {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ocean);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.arrow-link .arrow {
  display: inline-block;
  transition: transform var(--dur) var(--ease-out);
}
.arrow-link:hover .arrow {
  transform: translateX(4px);
}
/* ── Utility Classes ────────────────────────────────────────── */
.dim {
  color: var(--color-slate-strong);
}
.accent {
  color: var(--color-ocean);
}
.accent-strong {
  color: var(--color-ocean-bright);
}
.lead {
  color: var(--color-slate-strong);
  font-size: 1.06rem;
  max-width: 62ch;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-navy);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--color-navy);
}
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}
.chip {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  padding: 5px 10px;
  border-radius: 5px;
  background: var(--color-navy);
  color: var(--color-on-dark);
  white-space: nowrap;
}
.grade-services {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--sp-7);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.svc {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  background: var(--color-white);
  background: var(--color-white);
  transition: background var(--dur);
}
.svc::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--color-navy);
  transform: scaleX(0.35);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.svc:hover {
  border-color: rgba(74, 144, 226, 0.5);
  background: rgba(74, 144, 226, 0.09);
}
.svc:hover::before {
  transform: scaleX(1);
}
.svc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-navy);
  letter-spacing: 0.15em;
}
.svc h4 {
  margin: var(--sp-2) 0 6px;
  font-size: 0.98rem;
  font-weight: 700;
}
.svc p {
  font-size: 13.5px;
  color: var(--color-slate);
  line-height: 1.55;
}
html.js .preloader [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
}
html.js .preloader [data-reveal].in {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.8s var(--ease-out),
    transform 0.8s var(--ease-out);
}
html:not(.js) [data-reveal] {
  opacity: 1;
  transform: none;
}
html.js:not(.reveal-ready) [data-reveal],
html.js:not(.reveal-ready) [data-animate] {
  opacity: 1 !important;
  transform: none !important;
}
html.js:not(.reveal-ready) .bar-fill {
  width: var(--w);
}
html.js .hero [data-animate] {
  opacity: 0;
  transform: translateY(26px);
}
html.js .hero [data-animate].in {
  opacity: 1;
  transform: none;
  transition:
    opacity 0.9s ease-out,
    transform 0.9s var(--ease-out);
}
html.js.reveal-ready .steps.steps-ready .step:not(.in) {
  opacity: 0;
  transform: translateY(24px);
}
.steps .step.in {
  opacity: 1;
  transform: translateY(0);
}
.faq-item.open .faq-ico {
  transform: rotate(45deg);
}
.form-status.open {
  display: block;
}
html:not(.js) .bar-fill {
  width: var(--w);
}
html.js .stats [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .stats [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .grade-tabs [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .grade-tabs [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .engine-grid [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .engine-grid [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .insights-grid [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .insights-grid [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .sustain [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .sustain [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .roadmap [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .roadmap [data-reveal].in {
  opacity: 1;
  transform: none;
}
html.js .contact-grid [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}
html.js .contact-grid [data-reveal].in {
  opacity: 1;
  transform: none;
}
@media (max-width: 1024px) {
  :root {
    --header-h: 96px;
    --topbar-h: 30px;
    --navbar-h: 66px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .preloader .spinner {
    animation: none;
  }
  html.js section {
    opacity: 1;
    transition: none;
  }
  html.js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
  html.js .hero [data-animate] {
    opacity: 1;
    transform: none;
  }
}