.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.85rem;
    padding: 0.7rem 1.15rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    letter-spacing: 0.01em;
    line-height: 1.2;
    text-decoration: none;
    transition: background-color var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.btn:hover {
    color: inherit;
    transform: translateY(-1px);
}

.btn--primary {
    gap: 0.55rem;
    color: var(--color-white);
    background: var(--gradient-accent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 10px 22px rgba(29, 86, 224, 0.2);
}

.btn--primary::after {
    content: "";
    width: 0.38rem;
    height: 0.38rem;
    border-top: 1.5px solid currentColor;
    border-right: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-0.5px);
}

.btn--primary:hover {
    color: var(--color-white);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), var(--shadow-glow);
}

.btn--ghost {
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.03);
}

.btn--ghost:hover {
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.07);
}

.btn--ghost-light {
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn--ghost-light:hover {
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.42);
}

.btn--block {
    width: 100%;
}

.cta-band__text-link {
    display: inline-flex;
    align-items: center;
    min-height: 2.85rem;
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-cyan-300);
    text-decoration: none;
}

.cta-band__text-link:hover {
    color: var(--color-white);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    text-decoration: none;
    color: inherit;
}

.brand:hover {
    color: inherit;
}

.brand__mark {
    flex: 0 0 2.35rem;
    width: 2.35rem;
    height: 2.35rem;
}

.logo-mark {
    width: 100%;
    height: 100%;
}

.logo-mark__plate {
    fill: var(--color-navy-900);
    stroke: rgba(255, 255, 255, 0.08);
}

.site-header--overlay .logo-mark__plate,
.brand--footer .logo-mark__plate {
    fill: #142033;
}

.logo-mark__v {
    fill: #e9eef6;
}

.logo-mark__rule {
    fill: none;
    stroke: var(--color-cyan-400);
    stroke-width: 1.7;
    stroke-linecap: square;
}

.brand__text {
    display: flex;
    flex-direction: column;
    min-width: 0;
    gap: 0.1rem;
}

.brand__name {
    font-family: var(--font-display);
    font-size: 1.02rem;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.01em;
    line-height: 1.1;
}

.brand__signal {
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.site-header--overlay .brand__signal {
    color: var(--text-inverse-muted);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    height: var(--header-height);
}

.site-header__bar {
    height: var(--header-height);
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(16px);
    transition: background-color var(--ease), border-color var(--ease), box-shadow var(--ease), height var(--ease);
}

.site-header.is-scrolled .site-header__bar {
    height: var(--header-height-compact);
    background: var(--bg-header-scrolled);
    box-shadow: var(--shadow-header);
}

.has-hero .site-header {
    position: absolute;
    inset: 0 0 auto;
    width: 100%;
}

.has-hero .site-header--overlay .site-header__bar {
    background: transparent;
    border-bottom-color: transparent;
}

.has-hero .site-header--overlay.is-scrolled {
    position: fixed;
}

.has-hero .site-header--overlay.is-scrolled .site-header__bar {
    background: var(--bg-header-scrolled);
    border-bottom-color: var(--border-subtle);
}

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

.site-header__cta {
    margin-left: auto;
}

.nav-desktop {
    margin-left: auto;
}

.nav-desktop__list {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.nav-desktop__link,
.nav-desktop__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: 0.92rem;
    font-weight: var(--fw-medium);
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--ease), background-color var(--ease);
}

.nav-desktop__link:hover,
.nav-desktop__trigger:hover {
    color: var(--color-navy-900);
    background: rgba(15, 23, 42, 0.04);
}

.nav-desktop__link.is-current,
.nav-desktop__item.is-active > .nav-desktop__trigger {
    color: var(--color-navy-900);
    box-shadow: inset 0 -2px 0 var(--color-cyan-500);
}

.nav-desktop__chevron {
    transition: transform var(--ease);
}

.nav-desktop__item.has-sub:hover .nav-desktop__chevron,
.nav-desktop__item.has-sub:focus-within .nav-desktop__chevron,
.nav-desktop__trigger[aria-expanded="true"] .nav-desktop__chevron {
    transform: rotate(180deg);
}

.site-header--overlay:not(.is-scrolled) .nav-desktop__link,
.site-header--overlay:not(.is-scrolled) .nav-desktop__trigger,
.site-header--overlay:not(.is-scrolled) .brand {
    color: var(--text-inverse);
}

.site-header--overlay:not(.is-scrolled) .nav-desktop__link:hover,
.site-header--overlay:not(.is-scrolled) .nav-desktop__trigger:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-white);
}

.site-header--overlay:not(.is-scrolled) .nav-desktop__link.is-current,
.site-header--overlay:not(.is-scrolled) .nav-desktop__item.is-active > .nav-desktop__trigger {
    color: var(--color-white);
    box-shadow: inset 0 -2px 0 var(--color-cyan-400);
}

.nav-desktop__item {
    position: relative;
}

.nav-dropdown {
    position: absolute;
    top: calc(100% + 0.55rem);
    left: 0;
    min-width: 22rem;
    padding: 1rem 1.1rem 1.15rem;
    background: var(--color-white);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.4rem);
    pointer-events: none;
    transition: opacity var(--ease-out), transform var(--ease-out), visibility var(--ease-out);
}

.nav-desktop__item.has-sub--wide .nav-dropdown {
    left: auto;
    right: 0;
    min-width: 32rem;
}

.nav-desktop__item.has-sub:hover .nav-dropdown,
.nav-desktop__item.has-sub:focus-within .nav-dropdown,
.nav-desktop__item.is-open .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.nav-dropdown__intro {
    margin-bottom: 0.85rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

.nav-dropdown__overview {
    font-family: var(--font-display);
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-navy-900);
    text-decoration: none;
}

.nav-dropdown__overview:hover {
    color: var(--color-blue-600);
}

.nav-dropdown__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.5rem;
}

.nav-dropdown__label,
.nav-mobile__label,
.site-footer__heading {
    margin: 0 0 0.55rem;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.nav-dropdown__links a,
.nav-mobile__sub a,
.site-footer a {
    text-decoration: none;
}

.nav-dropdown__links a {
    display: block;
    padding: 0.32rem 0;
    font-size: 0.92rem;
    color: var(--color-slate-800);
}

.nav-dropdown__links a:hover {
    color: var(--color-blue-600);
}

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

.nav-checkbox:focus-visible ~ .site-header__bar .nav-toggle {
    outline: 2px solid var(--color-blue-500);
    outline-offset: 3px;
}

.nav-toggle {
    display: none;
    width: 2.6rem;
    height: 2.6rem;
    margin-left: auto;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
    display: block;
    width: 1.05rem;
    height: 1.5px;
    background: currentColor;
    transition: transform var(--ease), opacity var(--ease), top var(--ease);
}

.nav-toggle__bars {
    position: relative;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
    content: "";
    position: absolute;
    left: 0;
}

.nav-toggle__bars::before {
    top: -5px;
}

.nav-toggle__bars::after {
    top: 5px;
}

.nav-checkbox:checked ~ .site-header__bar .nav-toggle__bars,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
    background: transparent;
}

.nav-checkbox:checked ~ .site-header__bar .nav-toggle__bars::before,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-checkbox:checked ~ .site-header__bar .nav-toggle__bars::after,
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
    top: 0;
    transform: rotate(-45deg);
}

.site-header--overlay:not(.is-scrolled) .nav-toggle {
    color: var(--text-inverse);
    border-color: rgba(255, 255, 255, 0.2);
}

.nav-backdrop,
.nav-mobile {
    display: none;
}

.nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: var(--z-backdrop);
    background: rgba(7, 11, 20, 0.48);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--ease-out), visibility var(--ease-out);
}

.nav-mobile {
    position: fixed;
    top: 0;
    right: 0;
    z-index: var(--z-nav);
    width: min(22.5rem, 100%);
    height: 100%;
    background: var(--color-navy-900);
    color: var(--text-inverse);
    box-shadow: var(--shadow-lg);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--ease-out), visibility var(--ease-out);
}

.nav-mobile__panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    height: 100%;
    padding: calc(var(--header-height) + 0.5rem) var(--space-6) var(--space-8);
    overflow: auto;
}

.nav-mobile__kicker {
    font-family: var(--font-display);
    font-size: var(--fs-xs);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-cyan-300);
}

.nav-mobile__list {
    display: grid;
    gap: 0.15rem;
}

.nav-mobile__item > a,
.nav-mobile__item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--border-inverse);
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--text-inverse);
    text-decoration: none;
}

.nav-mobile__item summary {
    list-style: none;
}

.nav-mobile__item summary::-webkit-details-marker {
    display: none;
}

.nav-mobile__sub {
    display: grid;
    padding: 0.35rem 0 0.85rem;
}

.nav-mobile__label {
    margin: 0.85rem 0 0.25rem;
    color: var(--text-inverse-muted);
}

.nav-mobile__sub a {
    padding: 0.4rem 0;
    color: #c7d2e0;
}

.nav-mobile__sub a:hover {
    color: var(--color-white);
}

.cta-band {
    position: relative;
    isolation: isolate;
    padding: var(--space-section) 0;
    background: var(--gradient-cta);
    color: var(--text-inverse);
}

.cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.55), transparent 80%);
    pointer-events: none;
}

.cta-band__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(16rem, 0.8fr);
    gap: var(--space-10);
    align-items: end;
}

.cta-band h2 {
    color: var(--color-white);
    max-width: 20ch;
}

.cta-band__text {
    max-width: 42rem;
    margin-top: var(--space-4);
    color: var(--text-inverse-muted);
}

.cta-band__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.site-footer {
    background: var(--color-navy-950);
    color: var(--text-inverse);
}

.site-footer__inner {
    display: grid;
    grid-template-columns: minmax(16rem, 0.9fr) minmax(0, 1.6fr);
    gap: var(--space-12);
    padding: var(--space-16) 0 var(--space-12);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.site-footer__positioning {
    max-width: 28rem;
    margin: var(--space-5) 0 var(--space-6);
    color: var(--text-inverse-muted);
}

.site-footer__contact {
    display: grid;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.site-footer__contact dt {
    font-family: var(--font-display);
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-inverse-muted);
}

.site-footer__contact dd {
    margin: 0.2rem 0 0;
    color: var(--text-inverse);
}

.site-footer__social {
    display: flex;
    gap: var(--space-4);
    color: var(--text-inverse-muted);
}

.site-footer__social span {
    cursor: default;
}

.site-footer__nav {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-6);
}

.site-footer__col a,
.site-footer__legal a,
.site-footer__social a {
    color: #c5d0de;
}

.site-footer__col a {
    display: inline-block;
    padding: 0.28rem 0;
    font-size: 0.92rem;
}

.site-footer__col a:hover,
.site-footer__legal a:hover,
.site-footer__social a:hover {
    color: var(--color-white);
}

.site-footer__base {
    border-top: 1px solid var(--border-inverse);
}

.site-footer__base-inner {
    display: flex;
    justify-content: space-between;
    gap: var(--space-4);
    align-items: center;
    padding: var(--space-5) 0;
    color: var(--text-inverse-muted);
    font-size: var(--fs-sm);
}

.site-footer__legal {
    display: flex;
    gap: var(--space-5);
}