:root {
  /* Helvetica Now is a licensed typeface; Helvetica Neue is the universal system fallback */
  --font-display: "Montserrat", "Segoe UI", Arial, sans-serif;
  --font-body: "Helvetica Now", "Helvetica Neue", Helvetica, Arial, sans-serif;

  /* Brand palette — source: Celectric brand guide */
  --color-ink-950: #0e0e0e;       /* near-black for primary text */
  --color-ink-900: #076699;       /* brand primary blue */
  --color-ink-800: #0a7db8;       /* lighter primary tint */
  --color-steel-600: #7cb4d0;     /* brand accent light */
  --color-steel-400: #6e7c87;
  --color-mist-100: #b5c7d1;      /* brand secondary mist */
  --color-mist-050: #e8f1f5;
  --color-paper: #f5f9fc;
  --color-white: #ffffff;
  --color-accent: #076699;        /* brand primary */
  --color-accent-strong: #054f7a; /* darker brand blue */
  --color-accent-soft: #ddeef6;
  --color-success: #2f9e65;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-pill: 999px;

  --shadow-sm: 0 10px 24px rgba(17, 25, 34, 0.08);
  --shadow-md: 0 24px 48px rgba(17, 25, 34, 0.14);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --container: min(1140px, 92vw);
  --header-height: 82px;

  --anim-smooth: 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink-950);
  background:
    radial-gradient(circle at 15% -20%, rgba(7, 102, 153, 0.10), transparent 42%),
    radial-gradient(circle at 86% 22%, rgba(124, 180, 208, 0.12), transparent 45%),
    linear-gradient(180deg, #f5f9fc 0%, #ffffff 55%, #f2f7fb 100%);
  min-height: 100vh;
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.o-container {
  width: var(--container);
  margin-inline: auto;
}

.c-overline {
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--color-steel-600);
  margin: 0;
}

.c-site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-height);
  backdrop-filter: blur(14px);
  background: rgba(248, 251, 253, 0.82);
  border-bottom: 1px solid rgba(34, 52, 71, 0.08);
}

.c-site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.c-brand {
  display: inline-flex;
  align-items: center;
}

.c-brand__logo {
  height: 48px;
  width: auto;
  display: block;
}

.c-main-nav {
  display: inline-flex;
  align-items: center;
  gap: var(--space-5);
}

.c-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(19, 95, 136, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.c-menu-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-ink-900);
}

.c-mobile-nav__overlay {
  display: none;
  position: fixed;
  inset: var(--header-height) 0 0 0;
  border: 0;
  background: rgba(16, 33, 48, 0.32);
  z-index: 39;
}

.c-mobile-nav {
  display: none;
  position: relative;
  z-index: 40;
  border-top: 1px solid rgba(19, 95, 136, 0.08);
  background: rgba(246, 251, 253, 0.98);
  box-shadow: var(--shadow-md);
}

.c-mobile-nav__inner {
  display: grid;
  gap: var(--space-3);
  padding-block: var(--space-4) var(--space-5);
}

.c-mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.c-mobile-nav__title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-ink-950);
}

.c-mobile-nav__close {
  border: 0;
  background: transparent;
  color: var(--color-ink-900);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
}

.c-mobile-nav__inner a {
  font-size: 0.96rem;
  color: var(--color-ink-900);
  padding-block: var(--space-2);
}

.c-header-cta {
  display: inline-flex;
}

.c-menu-toggle span:not(.sr-only) {
  transition: transform var(--anim-smooth), opacity var(--anim-smooth);
}

body.has-mobile-menu .c-menu-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

body.has-mobile-menu .c-menu-toggle span:nth-child(2) {
  opacity: 0;
}

body.has-mobile-menu .c-menu-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

body.has-mobile-menu {
  overflow: hidden;
}

body.has-mobile-menu .c-mobile-nav__overlay:not([hidden]) {
  display: block;
}

@media (max-width: 980px) {
  .c-main-nav,
  .c-header-cta {
    display: none;
  }

  .c-menu-toggle {
    display: inline-flex;
  }

  .c-mobile-nav:not([hidden]) {
    display: block;
  }

  .c-site-header {
    height: auto;
  }

  .c-site-header__inner {
    min-height: var(--header-height);
  }
}

@media (min-width: 981px) {
  .c-mobile-nav,
  .c-mobile-nav__overlay {
    display: none !important;
  }
}

.c-main-nav a {
  font-size: 0.95rem;
  color: var(--color-ink-900);
  position: relative;
  padding-bottom: 4px;
}

.c-main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
  transition: transform var(--anim-smooth);
}

.c-main-nav a:hover::after,
.c-main-nav a.is-active::after {
  transform: scaleX(1);
}

.c-main-nav a.is-active {
  color: var(--color-ink-950);
}

.c-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 0.72rem 1.3rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform var(--anim-smooth), box-shadow var(--anim-smooth), background-color var(--anim-smooth), color var(--anim-smooth), border-color var(--anim-smooth);
}

.c-btn:hover {
  transform: translateY(-2px);
}

.c-btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.c-btn--sm {
  padding: 0.56rem 1rem;
  font-size: 0.82rem;
}

.c-btn--solid {
  background: linear-gradient(145deg, var(--color-accent), var(--color-accent-strong));
  color: #fff;
  box-shadow: 0 14px 24px rgba(19, 95, 136, 0.26);
}

.c-btn--solid:hover {
  box-shadow: 0 18px 28px rgba(19, 95, 136, 0.32);
}

.c-btn--ghost {
  background: transparent;
  color: var(--color-ink-900);
  border-color: rgba(34, 52, 71, 0.2);
}

.c-btn--ghost:hover {
  border-color: rgba(34, 52, 71, 0.35);
}

.c-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.c-chip {
  border: 1px solid rgba(34, 52, 71, 0.16);
  color: var(--color-ink-800);
  background: rgba(255, 255, 255, 0.82);
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  padding: 0.36rem 0.72rem;
}

.c-chip[data-variant] {
  cursor: pointer;
  transition: background-color var(--anim-smooth), color var(--anim-smooth), border-color var(--anim-smooth);
}

.c-chip[data-variant]:hover,
.c-chip[data-variant].is-active,
.c-chip[data-variant][aria-pressed="true"] {
  background: var(--color-ink-900);
  color: var(--color-white);
  border-color: var(--color-ink-900);
}

.c-section {
  padding-block: var(--space-16);
}

.c-section--tight {
  padding-block: var(--space-12);
}

.c-section__head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  max-width: 62ch;
}

.c-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.9vw, 2.45rem);
  line-height: 1.1;
  color: var(--color-ink-950);
}

.c-section__copy {
  margin: 0;
  color: var(--color-steel-600);
  line-height: 1.6;
  font-size: 1rem;
}

.c-grid {
  display: grid;
  gap: var(--space-6);
}

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

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

.c-grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.c-card {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid rgba(34, 52, 71, 0.12);
  background: rgba(255, 255, 255, 0.9);
  padding: var(--space-6);
}

.c-card--soft {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.95), rgba(223, 233, 240, 0.42));
}

.c-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-ink-950);
}

.c-card__subtitle {
  margin: 0;
  color: var(--color-steel-600);
  font-size: 0.92rem;
  line-height: 1.5;
}

.c-card__meta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-3);
  color: var(--color-steel-600);
  font-size: 0.82rem;
}

.c-list-clean {
  margin: 0;
  padding: 0;
  list-style: none;
}

.c-data-list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
}

.c-data-list > div {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  border-bottom: 1px solid rgba(34, 52, 71, 0.1);
  padding-bottom: var(--space-2);
}

.c-data-list dt {
  font-size: 0.85rem;
  color: var(--color-steel-600);
}

.c-data-list dd {
  margin: 0;
  font-size: 0.9rem;
  text-align: right;
  color: var(--color-ink-900);
}

.c-kpi {
  display: grid;
  gap: var(--space-1);
}

.c-kpi strong {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  color: var(--color-ink-950);
}

.c-kpi span {
  font-size: 0.8rem;
  color: var(--color-steel-600);
}

.c-docs {
  display: grid;
  gap: var(--space-8);
}

.c-docs__group h3 {
  margin: 0 0 var(--space-3);
  font-size: 1.02rem;
  font-family: var(--font-display);
}

.c-docs__items {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.c-docs__item {
  border: 1px solid rgba(34, 52, 71, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: center;
  background: rgba(255, 255, 255, 0.9);
}

.c-docs__title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.c-docs__meta {
  margin: 4px 0 0;
  font-size: 0.78rem;
  color: var(--color-steel-600);
}

.c-docs__item a {
  font-size: 0.82rem;
  color: var(--color-accent-strong);
  font-weight: 600;
}

.c-pill-note {
  display: inline-flex;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(216, 91, 23, 0.28);
  color: var(--color-accent-strong);
  font-size: 0.76rem;
  padding: 0.38rem 0.68rem;
  background: var(--color-accent-soft);
}

.c-cta-strip {
  padding-block: var(--space-10);
  background: linear-gradient(120deg, var(--color-ink-900), #1f2e3d);
  color: #fff;
}

.c-cta-strip__inner {
  display: flex;
  justify-content: space-between;
  gap: var(--space-8);
  align-items: center;
}

.c-cta-strip h2 {
  margin: var(--space-2) 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.8vw, 2rem);
}

.c-cta-strip p {
  margin: 0;
  max-width: 58ch;
  color: rgba(255, 255, 255, 0.82);
}

.c-site-footer {
  padding-block: var(--space-10);
  border-top: 1px solid rgba(34, 52, 71, 0.12);
  background: rgba(245, 249, 252, 0.68);
}

.c-site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-8);
}

.c-site-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.c-site-footer__logo {
  width: 32px;
  height: 32px;
  display: block;
}

.c-site-footer__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
}

.c-site-footer__meta {
  margin: var(--space-2) 0 0;
  color: var(--color-steel-600);
  font-size: 0.92rem;
}

.c-site-footer__links {
  display: grid;
  gap: var(--space-2);
  justify-items: end;
}

.c-site-footer__links a {
  color: var(--color-steel-600);
  font-size: 0.88rem;
}

.c-site-footer__copy {
  margin: var(--space-6) 0 0;
  grid-column: 1 / -1;
  color: var(--color-steel-600);
  font-size: 0.8rem;
}

.c-input,
.c-select,
.c-textarea {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34, 52, 71, 0.18);
  background: #fff;
  color: var(--color-ink-900);
  padding: 0.7rem 0.85rem;
  font: inherit;
}

.c-input:focus,
.c-select:focus,
.c-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(20, 110, 157, 0.18);
}

.c-input:focus-visible,
.c-select:focus-visible,
.c-textarea:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 1px;
}

.c-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.c-form-row {
  display: grid;
  gap: var(--space-2);
}

.c-form-row label {
  font-size: 0.8rem;
  color: var(--color-steel-600);
}

.c-form-row--full {
  grid-column: 1 / -1;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .c-main-nav {
    display: none;
  }

  .c-grid--3,
  .c-grid--4,
  .c-form-grid,
  .c-site-footer__inner,
  .c-grid--2 {
    grid-template-columns: 1fr;
  }

  .c-site-footer__links {
    justify-items: start;
  }

  .c-cta-strip__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}