:root {
    --bi-primary: #0b6e99;
    --bi-secondary: #3ec6e0;
    --bi-accent: #ff6b2c;
    --bi-bg: #e8f6fc;
    --bi-ink: #0a2f44;
    --bi-muted: #3a6a82;
    --bi-line: #9ed7ea;
    --bi-panel: #ffffff;
    --bi-deep: #083552;
    --bi-ice: #f4fbff;
    --bi-head-h: 76px;
    --bi-font-h: "Teko", sans-serif;
    --bi-font-b: "Nunito", sans-serif;
    --bi-page-w: 1120px;
    --bi-radius: 18px;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--bi-font-b);
    color: var(--bi-ink);
    background:
        radial-gradient(ellipse 900px 420px at 10% -10%, rgba(62, 198, 224, 0.35), transparent 60%),
        radial-gradient(ellipse 700px 380px at 100% 0%, rgba(255, 107, 44, 0.12), transparent 55%),
        linear-gradient(180deg, #d7eef8 0%, var(--bi-bg) 28%, #f7fcff 100%);
    line-height: 1.55;
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
    background-image:
        radial-gradient(circle 2px at 12% 18%, #fff 98%, transparent),
        radial-gradient(circle 1.5px at 28% 42%, #fff 98%, transparent),
        radial-gradient(circle 2px at 55% 12%, #fff 98%, transparent),
        radial-gradient(circle 1px at 72% 36%, #fff 98%, transparent),
        radial-gradient(circle 2px at 88% 22%, #fff 98%, transparent),
        radial-gradient(circle 1.5px at 40% 70%, #fff 98%, transparent),
        radial-gradient(circle 2px at 65% 82%, #fff 98%, transparent);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--bi-primary); text-decoration-thickness: 1px; }
a:hover { color: var(--bi-accent); }
code { font-size: 0.92em; }

.biWrap {
    max-width: var(--bi-page-w);
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.biMeasure { max-width: 760px; }

.biMain {
    padding-top: var(--bi-head-h);
    position: relative;
    z-index: 1;
}

.biHead {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--bi-head-h);
    background: linear-gradient(180deg, #0a3d5c 0%, #0d4a6e 100%);
    border-bottom: 3px solid var(--bi-accent);
    box-shadow: 0 8px 24px rgba(8, 53, 82, 0.25);
}

.biHead-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    height: var(--bi-head-h);
}

.biHead-logo {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.biHead-logo img {
    width: 180px;
    height: auto;
    min-height: 36px;
}

.biHead-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 10px;
    margin-left: auto;
    align-items: center;
}

.biHead-link {
    color: #e8f6fc;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    padding: 4px 2px;
}

.biHead-link:hover,
.biHead-link.is-active {
    border-bottom-color: var(--bi-accent);
    color: #fff;
}

.biHead-cta { flex: 0 0 auto; }

.biHead-burger {
    display: none;
    width: 44px;
    height: 44px;
    border: 2px solid #9ed7ea;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 10px 8px;
    cursor: pointer;
    margin-left: auto;
}

.biHead-burger span {
    display: block;
    height: 2px;
    background: #fff;
    margin: 5px 0;
    border-radius: 2px;
}

.biOverlay {
    position: fixed;
    inset: 0;
    background: rgba(8, 53, 82, 0.55);
    z-index: 1100;
}

.biDrawer {
    position: fixed;
    top: 0;
    right: 0;
    width: min(75vw, 320px);
    height: 100dvh;
    background: linear-gradient(180deg, #0d4a6e, #083552);
    border-left: 3px solid var(--bi-accent);
    z-index: 1200;
    padding: 16px;
    overflow-y: auto;
    color: #fff;
}

.biDrawer[hidden],
.biOverlay[hidden],
.biCookie[hidden] { display: none !important; }

.biDrawer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.biDrawer-label {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 1.4rem;
}

.biDrawer-close {
    min-height: 44px;
    min-width: 44px;
    border: 2px solid #9ed7ea;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-weight: 700;
    border-radius: 12px;
    cursor: pointer;
}

.biDrawer-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.biDrawer-nav a {
    color: #e8f6fc;
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 700;
    padding: 12px 10px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
}

.biBtn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 20px;
    border: 0;
    background: var(--bi-panel);
    color: var(--bi-ink);
    font-family: var(--bi-font-b);
    font-weight: 800;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    border-radius: 999px;
    box-shadow: 0 4px 0 #9ed7ea;
}

.biBtn-fill {
    background: linear-gradient(180deg, #ff8a4c 0%, var(--bi-accent) 100%);
    color: #fff;
    box-shadow: 0 4px 0 #c44812;
}

.biHead .biBtn-fill,
.biDrawer .biBtn-scale {
    background: linear-gradient(180deg, #ff8a4c 0%, var(--bi-accent) 100%);
    color: #fff;
    box-shadow: 0 4px 0 #c44812;
}

.biBtn-ghost {
    background: rgba(255, 255, 255, 0.88);
    color: var(--bi-deep);
    border: 2px solid #9ed7ea;
    box-shadow: none;
}

.biHero .biBtn-ghost {
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.55);
}

.biBtn-scale {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.biBtn-scale:hover {
    transform: scale(1.05) translateY(-1px);
}

.biBtn-scale:active {
    transform: scale(0.98) translateY(2px);
    box-shadow: 0 1px 0 #c44812;
}

.biHero {
    position: relative;
    background:
        radial-gradient(circle at 78% 30%, rgba(62, 198, 224, 0.35), transparent 42%),
        linear-gradient(160deg, #083552 0%, #0b6e99 48%, #1a8fb5 100%);
    border-bottom: 0;
    padding: 52px 0 64px;
    overflow: hidden;
    color: #fff;
}

.biHero::before {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 28px;
    background:
        radial-gradient(circle at 20px 0, transparent 18px, var(--bi-bg) 19px) 0 0 / 40px 28px repeat-x;
    opacity: 1;
}

.biHero::after {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    right: 8%;
    top: 18%;
    border-radius: 50%;
    border: 10px solid rgba(255, 255, 255, 0.18);
    box-shadow:
        inset 0 0 0 18px rgba(8, 53, 82, 0.35),
        0 0 0 6px rgba(62, 198, 224, 0.25);
    background:
        radial-gradient(circle at 50% 55%, #083552 0 28%, transparent 29%),
        radial-gradient(circle at 50% 50%, rgba(62, 198, 224, 0.5), transparent 60%);
    pointer-events: none;
    animation: biFloat 4.5s ease-in-out infinite;
}

.biHero-label {
    font-size: 0.85rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: #9ed7ea;
    margin: 0 0 12px;
    font-weight: 800;
}

.biHero-quote {
    margin: 0;
    padding: 28px;
    border: 0;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
    max-width: 720px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.biHero-title {
    font-family: var(--bi-font-h);
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    line-height: 0.95;
    margin: 0 0 12px;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    color: #fff;
}

.biHero-text {
    margin: 0;
    color: #d7eef8;
    font-size: 1.08rem;
}

.biHero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.biTimeline {
    position: relative;
    padding: 48px 20px 24px;
}

.biTimeline-rail {
    position: absolute;
    left: 36px;
    top: 20px;
    bottom: 20px;
    width: 4px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--bi-secondary), var(--bi-primary));
}

.biBlock {
    position: relative;
    margin: 0 0 28px 56px;
    padding: 26px;
    border: 0;
    border-radius: var(--bi-radius);
    background: var(--bi-panel);
    box-shadow:
        0 10px 0 rgba(14, 90, 130, 0.08),
        0 12px 28px rgba(8, 53, 82, 0.08);
}

.biBlock-mark {
    position: absolute;
    left: -58px;
    top: 26px;
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: linear-gradient(180deg, #ff8a4c, var(--bi-accent));
    border: 3px solid #fff;
    border-radius: 50%;
    font-family: var(--bi-font-h);
    font-weight: 700;
    font-size: 1.25rem;
    color: #fff;
    box-shadow: 0 4px 0 #c44812;
}

.biBlock-title {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    font-size: 1.85rem;
    line-height: 1;
    margin: 0 0 12px;
    position: relative;
    color: var(--bi-deep);
}

.biBlock-title::after {
    content: "";
    display: block;
    height: 4px;
    width: 0;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--bi-secondary), var(--bi-accent));
    margin-top: 10px;
    transition: width 0.6s ease;
}

.biBlock.is-inview .biBlock-title::after,
.biCta.is-inview .biCta-title::after {
    width: 88px;
}

.biBlock-text { margin: 0; color: var(--bi-muted); }

.biPassport-head {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.biPassport-icon {
    width: 104px;
    height: 104px;
    border: 4px solid #9ed7ea;
    border-radius: 24%;
    box-shadow: 0 8px 0 rgba(14, 90, 130, 0.12);
}

.biPassport-name {
    font-family: var(--bi-font-h);
    font-size: 1.8rem;
    line-height: 1;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.biPassport-dev {
    margin: 0 0 14px;
    color: var(--bi-muted);
}

.biPassport-still {
    margin: 20px 0 0;
    border-radius: 16px;
    overflow: hidden;
    border: 3px solid #9ed7ea;
}

.biPassport-still img { width: 100%; }

.biPassport-still figcaption {
    margin: 0;
    padding: 10px 12px;
    font-size: 0.9rem;
    color: var(--bi-muted);
    background: var(--bi-ice);
}

.biTableWrap {
    overflow-x: auto;
    border: 2px solid #9ed7ea;
    border-radius: 16px;
}

.biTable {
    width: 100%;
    border-collapse: collapse;
    min-width: 520px;
    background: var(--bi-panel);
}

.biTable caption {
    text-align: left;
    padding: 12px 14px;
    font-weight: 800;
    background: linear-gradient(90deg, #dff4fb, #fff);
    border-bottom: 2px solid #9ed7ea;
}

.biTable th,
.biTable td {
    padding: 11px 14px;
    border-bottom: 1px solid #d7eef8;
    text-align: left;
    vertical-align: top;
}

.biTable th {
    width: 34%;
    background: #eef8fc;
    font-weight: 800;
}

.biTable thead th {
    width: auto;
    background: var(--bi-deep);
    color: #fff;
}

.biBriefGrid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.biBrief {
    border: 2px solid #9ed7ea;
    background: linear-gradient(180deg, #fff, #f3fbff);
    padding: 18px;
    border-radius: 16px;
    transition: transform 0.15s ease;
}

.biBrief:hover { transform: translateY(-3px); }

.biBrief-meta {
    margin: 0 0 8px;
    font-size: 0.85rem;
    color: var(--bi-muted);
    font-weight: 700;
}

.biBrief-title {
    font-family: var(--bi-font-h);
    font-size: 1.45rem;
    line-height: 1;
    margin: 0 0 8px;
    text-transform: uppercase;
}

.biBrief-title a {
    color: var(--bi-deep);
    text-decoration: none;
}

.biBrief-excerpt {
    margin: 0;
    color: var(--bi-muted);
}

.biCta {
    background:
        radial-gradient(circle at 20% 0%, rgba(62, 198, 224, 0.25), transparent 40%),
        linear-gradient(135deg, #083552, #0b6e99);
    color: #fff;
    padding: 56px 0;
    text-align: center;
    position: relative;
    z-index: 1;
}

.biCta-title {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    margin: 0 0 12px;
    font-size: 2.2rem;
    line-height: 1;
}

.biCta-title::after {
    content: "";
    display: block;
    width: 0;
    height: 4px;
    border-radius: 4px;
    background: var(--bi-accent);
    margin: 12px auto 0;
    transition: width 0.6s ease;
}

.biCta-text {
    max-width: 560px;
    margin: 0 auto 22px;
    color: #d7eef8;
}

.biCta .biBtn-fill {
    background: linear-gradient(180deg, #ff8a4c, var(--bi-accent));
    color: #fff;
}

.biPage {
    padding: 40px 0 64px;
    position: relative;
    z-index: 1;
}

.biPage-title {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    letter-spacing: 0.02em;
    font-size: clamp(2rem, 4vw, 2.8rem);
    line-height: 0.95;
    margin: 0 0 12px;
    color: var(--bi-deep);
}

.biPage-lead {
    color: var(--bi-muted);
    font-size: 1.05rem;
}

.biPage-meta {
    color: var(--bi-muted);
    font-size: 0.9rem;
    font-weight: 700;
}

.biSteps {
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
    counter-reset: bi-step;
}

.biSteps > li {
    counter-increment: bi-step;
    border: 0;
    padding: 22px;
    margin-bottom: 14px;
    background: var(--bi-panel);
    border-radius: var(--bi-radius);
    box-shadow: 0 8px 0 rgba(14, 90, 130, 0.08);
    position: relative;
}

.biSteps > li::before {
    content: counter(bi-step, decimal-leading-zero);
    font-family: var(--bi-font-h);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--bi-accent);
    display: block;
    margin-bottom: 6px;
}

.biSteps h2 {
    font-family: var(--bi-font-h);
    font-size: 1.5rem;
    line-height: 1;
    text-transform: uppercase;
    margin: 0 0 8px;
}

.biContactCard {
    border: 0;
    padding: 24px;
    background: var(--bi-panel);
    margin-top: 24px;
    border-radius: var(--bi-radius);
    box-shadow: 0 10px 0 rgba(14, 90, 130, 0.08);
}

.biContactCard-note {
    color: var(--bi-muted);
    margin-bottom: 0;
}

.biGlossary div {
    border-bottom: 1px solid #d7eef8;
    padding: 14px 0;
}

.biGlossary dt {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    font-size: 1.25rem;
    margin: 0 0 4px;
}

.biGlossary dd {
    margin: 0;
    color: var(--bi-muted);
}

.biTopic {
    margin: 32px 0;
}

.biTopic-title {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    font-size: 1.8rem;
    border-bottom: 3px solid var(--bi-secondary);
    padding-bottom: 8px;
    color: var(--bi-deep);
}

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

.biTopic-item {
    border: 0;
    padding: 18px;
    margin: 12px 0;
    background: var(--bi-panel);
    border-radius: 16px;
    box-shadow: 0 8px 0 rgba(14, 90, 130, 0.07);
}

.biTopic-meta {
    display: block;
    color: var(--bi-muted);
    font-size: 0.85rem;
    margin: 4px 0 8px;
    font-weight: 700;
}

.biCrumb {
    margin-bottom: 16px;
}

.biCrumb-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.9rem;
}

.biCrumb-item:not(:last-child)::after {
    content: "/";
    margin-left: 8px;
    color: var(--bi-muted);
}

.biFoot {
    background: linear-gradient(180deg, #0a3d5c, #083552);
    border-top: 3px solid var(--bi-accent);
    padding: 40px 0 28px;
    color: #d7eef8;
    position: relative;
    z-index: 1;
}

.biFoot a { color: #9ed7ea; }

.biFoot-card {
    border: 0;
    padding: 22px;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 18px;
}

.biFoot-kicker {
    font-family: var(--bi-font-h);
    text-transform: uppercase;
    margin: 0 0 8px;
    letter-spacing: 0.08em;
    font-size: 1.35rem;
    color: #fff;
}

.biFoot-note { margin: 0 0 12px; color: #b7dceb; }
.biFoot-meta { margin: 0; font-size: 0.9rem; color: #9ed7ea; }

.biFoot-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

.biFoot-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}

.biFoot-links a,
.biFoot-cookie {
    color: #e8f6fc;
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    text-decoration: underline;
}

.biFoot-copy { margin: 0; color: #9ed7ea; }

.biFoot-disclaim {
    margin: 0;
    padding-left: 18px;
    color: #9ed7ea;
    font-size: 0.9rem;
}

.biCookie {
    position: fixed;
    left: 50%;
    bottom: 20px;
    transform: translateX(-50%);
    z-index: 1300;
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: min(560px, calc(100vw - 24px));
    padding: 12px 12px 12px 18px;
    background: linear-gradient(180deg, #0d4a6e, #083552);
    border: 0;
    border-radius: 999px;
    box-shadow: 0 12px 28px rgba(8, 53, 82, 0.35);
    color: #e8f6fc;
}

.biCookie-text {
    margin: 0;
    font-size: 0.9rem;
    color: #d7eef8;
}

.biCookie-text a {
    color: #3ec6e0;
    font-weight: 800;
}

.biCookie .biBtn-fill {
    flex: 0 0 auto;
    min-width: 72px;
}

body.is-locked { overflow: hidden; }

@keyframes biFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@media (max-width: 1100px) {
    .biHead-nav { display: none; }
    .biHead-cta { display: none; }
    .biHead-burger { display: inline-block; }
    .biHead-logo img { width: 120px; min-height: 28px; }
    .biHero::after { width: 110px; height: 110px; right: 4%; top: 12%; }
}

@media (max-width: 768px) {
    .biTimeline-rail { left: 20px; }
    .biBlock { margin-left: 40px; padding: 18px; }
    .biBlock-mark { left: -42px; width: 36px; height: 36px; font-size: 1rem; }
    .biHero-actions .biBtn { width: 100%; }
    .biPassport-head { flex-direction: column; }
    .biCookie {
        border-radius: 18px;
        flex-direction: column;
        align-items: stretch;
    }
}

@media (prefers-reduced-motion: reduce) {
    .biBtn-scale { transition: none; }
    .biBlock-title::after,
    .biCta-title::after { transition: none; width: 88px; }
    .biHero::after { animation: none; }
    html { scroll-behavior: auto; }
}