/*
 * BiPS Foundation — site styles
 * Loaded after Bootstrap 5.3.8, so these rules override Bootstrap defaults.
 */

/* ---------- Design tokens ---------- */
:root,
[data-bs-theme="dark"] {
    --bips-bg: #07070b;
    --bips-surface: #0f0f15;
    --bips-surface-2: #0b0b10;
    --bips-border: rgba(255, 255, 255, .08);
    --bips-border-strong: rgba(255, 255, 255, .14);
    --bips-text: #f4f4f7;
    --bips-muted: #a4a4b3;
    --bips-purple: #8b3dff;
    --bips-purple-deep: #6a2bff;
    --bips-purple-light: #a66bff;
    --bips-purple-glow: rgba(139, 61, 255, .35);
    --bips-teal: #14c8b4;
    --bips-teal-hover: #11b3a1;
    --bips-nav-h: 84px;
    --bips-radius: 18px;
    --bips-content-max: 1200px;                 /* max width of page content */
    --bips-gutter: clamp(1rem, 4vw, 2.5rem);    /* side space around content */

    --bs-body-bg: var(--bips-bg);
    --bs-body-color: var(--bips-text);
    --bs-body-font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --bs-border-color: var(--bips-border);
    --bs-secondary-color: var(--bips-muted);
    --bs-link-color: var(--bips-purple-light);
    --bs-link-color-rgb: 166, 107, 255;
    --bs-link-hover-color: #c29bff;
    --bs-link-hover-color-rgb: 194, 155, 255;
    --bs-focus-ring-color: rgba(139, 61, 255, .45);
}

/* Anchor jumps land below the sticky header. --bips-banner-h is set by main.js when the UK risk bar shows. */
html { scroll-padding-top: calc(var(--bips-nav-h) + var(--bips-banner-h, 0px)); }

/* Page width: content never exceeds --bips-content-max and always keeps a side gutter. */
.container-xxl {
    max-width: calc(var(--bips-content-max) + var(--bips-gutter) * 2);
    padding-inline: var(--bips-gutter);
}

body {
    background: var(--bips-bg);
    color: var(--bips-text);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .h1, .h2, .h3, .brand {
    font-family: "Manrope", var(--bs-body-font-family);
    letter-spacing: -.02em;
}

::selection { background: var(--bips-purple); color: #fff; }

.skip-link {
    position: absolute; left: 1rem; top: -3rem; z-index: 2000;
    background: var(--bips-purple); color: #fff; padding: .5rem 1rem; border-radius: 8px;
}
.skip-link:focus { top: 1rem; }

/* ---------- Typography helpers ---------- */
.eyebrow {
    color: var(--bips-purple-light);
    font-size: .9rem;
    font-weight: 600;
    letter-spacing: .08em;
    margin-bottom: 1rem;
}
.text-accent {
    color: var(--bips-purple-light);
    background: linear-gradient(90deg, #8b3dff 0%, #b27dff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-title   { font-size: clamp(2.4rem, 4.4vw, 3.9rem); font-weight: 700; line-height: 1.08; }
.display-title{ font-size: clamp(2.75rem, 6vw, 5.25rem); font-weight: 800; line-height: 1.05; }
.section-title{ font-size: clamp(2.1rem, 4.2vw, 3.5rem); font-weight: 700; line-height: 1.1; }
.section-lead { color: #c3c3cf; font-size: clamp(1.05rem, 1.6vw, 1.3rem); line-height: 1.55; max-width: 60rem; }
.text-muted-bips { color: var(--bips-muted); }

/* ---------- Buttons ---------- */
.btn { --bs-btn-font-weight: 500; }
.btn-bips {
    --bs-btn-color: #fff;
    --bs-btn-hover-color: #fff;
    --bs-btn-active-color: #fff;
    --bs-btn-padding-y: .95rem;
    --bs-btn-padding-x: 1.6rem;
    --bs-btn-font-size: 1.1rem;
    --bs-btn-border-radius: 10px;
    background: linear-gradient(135deg, var(--bips-purple-deep), #7d3cff);
    border: 1px solid rgba(255, 255, 255, .08);
    box-shadow: 0 10px 30px -10px var(--bips-purple-glow);
}
.btn-bips:hover, .btn-bips:focus-visible { background: linear-gradient(135deg, #7536ff, #8f52ff); box-shadow: 0 14px 34px -10px rgba(139, 61, 255, .55); }
.btn-bips-outline {
    --bs-btn-color: var(--bips-text);
    --bs-btn-border-color: rgba(139, 92, 246, .7);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: rgba(139, 61, 255, .14);
    --bs-btn-hover-border-color: var(--bips-purple-light);
    --bs-btn-active-bg: rgba(139, 61, 255, .22);
    --bs-btn-active-border-color: var(--bips-purple-light);
    --bs-btn-padding-y: .95rem;
    --bs-btn-padding-x: 1.6rem;
    --bs-btn-font-size: 1.1rem;
    --bs-btn-border-radius: 10px;
}
.btn-nav {
    --bs-btn-color: var(--bips-purple-light);
    --bs-btn-border-color: rgba(139, 92, 246, .75);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: rgba(139, 61, 255, .16);
    --bs-btn-hover-border-color: var(--bips-purple-light);
    --bs-btn-active-bg: rgba(139, 61, 255, .24);
    --bs-btn-padding-y: .65rem;
    --bs-btn-padding-x: 1.4rem;
    --bs-btn-border-radius: 8px;
    font-weight: 600;
}
/* Contact form submit: brand purple (.btn-bips) with wider, letter-spaced label. */
.btn-submit {
    --bs-btn-padding-y: 1rem;
    --bs-btn-padding-x: 3.5rem;
    --bs-btn-font-size: 1rem;
    --bs-btn-border-radius: 8px;
    font-weight: 600;
    letter-spacing: .12em;
}
.btn .bi-arrow-right { transition: transform .2s ease; }
.btn:hover .bi-arrow-right { transform: translateX(3px); }

/* ---------- Header: UK risk warning bar + navbar ---------- */
.site-header { position: sticky; top: 0; z-index: 1030; }

/* Hidden unless uk-notice.js marks a UK visitor. High-contrast so the warning is prominent. */
.risk-banner {
    display: none;
    padding-block: .6rem;
    background: #f4f2fb;
    color: #14121c;
    font-size: .9rem;
    line-height: 1.45;
    text-align: center;
}
.is-uk-visitor .risk-banner { display: block; }
.risk-banner-link {
    padding: 0;
    border: 0;
    background: none;
    color: #5b21d6;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 2px;
}
.risk-banner-link:hover, .risk-banner-link:focus-visible { color: #3d0fa8; }
@media (max-width: 575.98px) {
    .risk-banner { font-size: .8rem; text-align: left; padding-block: .5rem; }
}

/* ---------- Navbar ---------- */
.site-nav {
    min-height: var(--bips-nav-h);
    padding-block: 0;
    background: rgba(7, 7, 11, .82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--bips-border);
}
.site-nav .brand { font-size: 2rem; font-weight: 800; color: #fff; text-decoration: none; letter-spacing: -.03em; }
.site-nav .nav-link {
    position: relative;
    color: #e8e8ef;
    font-size: .98rem;
    padding: 1.9rem 0 !important;
    margin-inline: 1.05rem;
}
.site-nav .nav-link:hover { color: #fff; }
.site-nav .nav-link.active { color: var(--bips-purple-light); }
.site-nav .nav-link.active::after {
    content: "";
    position: absolute; left: 0; right: 0; bottom: -1px;
    height: 2px; border-radius: 2px;
    background: var(--bips-purple);
}
.site-nav .navbar-toggler { border-color: var(--bips-border-strong); }
.site-nav .navbar-toggler:focus { box-shadow: 0 0 0 .2rem var(--bs-focus-ring-color); }

@media (max-width: 1199.98px) {
    .site-nav { background: rgba(7, 7, 11, .97); }
    .site-nav .navbar-collapse { padding-bottom: 1.25rem; }
    .site-nav .nav-link { padding: .7rem 0 .7rem 1rem !important; margin: 0; border-left: 2px solid transparent; }
    .site-nav .nav-link.active::after { display: none; }
    .site-nav .nav-link.active { border-left-color: var(--bips-purple); }
}

/* ---------- Sections ---------- */
.section { position: relative; padding-block: clamp(2.25rem, 4.5vw, 3.75rem); }
.section + .section { border-top: 1px solid rgba(255, 255, 255, .04); }

.bips-card {
    position: relative;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, .035) 0%, rgba(255, 255, 255, .012) 100%), var(--bips-surface-2);
    border: 1px solid var(--bips-border);
    border-radius: var(--bips-radius);
    transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.bips-card-hover:hover {
    border-color: rgba(139, 61, 255, .45);
    box-shadow: 0 20px 50px -30px var(--bips-purple-glow);
}
@media (prefers-reduced-motion: no-preference) {
    .bips-card-hover:hover { transform: translateY(-3px); }
}
.icon-purple { color: var(--bips-purple); line-height: 1; }
.v-divider { width: 1px; align-self: stretch; background: rgba(255, 255, 255, .1); flex: 0 0 1px; }

.callout {
    display: flex; align-items: center; gap: 1.75rem;
    padding: 1.6rem 2rem;
    border: 1px solid rgba(139, 61, 255, .45);
    border-radius: 14px;
    background: linear-gradient(90deg, rgba(139, 61, 255, .09), rgba(139, 61, 255, .02) 60%), var(--bips-surface-2);
}
.callout .callout-icon { font-size: 2.6rem; color: var(--bips-purple); flex-shrink: 0; }
/* Callout with a heading and several paragraphs (Treasury Security and Diversification). */
.callout-block { align-items: flex-start; padding-block: 1.9rem; }
.callout-block .callout-title { margin-bottom: .8rem; }
.callout-block p { color: #c3c3cf; line-height: 1.65; }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    overflow: hidden;
    padding-top: clamp(3rem, 7vw, 6rem);
    padding-bottom: clamp(5rem, 8vw, 7rem);
    background:
        radial-gradient(60rem 30rem at 85% 0%, rgba(139, 61, 255, .10), transparent 60%),
        radial-gradient(50rem 25rem at 70% 100%, rgba(139, 61, 255, .12), transparent 70%),
        var(--bips-bg);
}
.hero .container-xxl { position: relative; z-index: 1; }
.hero-lead { color: #cfcfda; font-size: clamp(1.05rem, 1.5vw, 1.3rem); line-height: 1.55; max-width: 36rem; }
.hero-wave {
    position: absolute; left: 0; right: 0; bottom: 0;
    width: 100%; height: clamp(140px, 15vw, 230px);
    pointer-events: none;
}
.hero-wave path { stroke-width: .8; vector-effect: non-scaling-stroke; }

.stat-card { display: flex; align-items: center; gap: 1rem; padding: 1.9rem 1.35rem; }
.stat-card .stat-icon { font-size: 2.2rem; }
.stat-card .v-divider { align-self: center; height: 58px; }
.stat-card .stat-value { font-family: "Manrope", sans-serif; font-size: clamp(1.25rem, 1.5vw, 1.45rem); font-weight: 700; margin: 0; letter-spacing: -.01em; white-space: nowrap; }
.stat-card .stat-label { color: var(--bips-muted); margin: .25rem 0 0; }
.stat-card.wide { padding-block: 2.5rem; }

/* Live FDV / price card: sources and pool liquidity sit under the figures. */
.price-card.wide { padding-block: 1.6rem; }
.price-sources { margin: .55rem 0 0; color: var(--bips-muted); font-size: .82rem; line-height: 1.5; }

/* 31 October 2018 milestone, under the hero introduction. */
.milestone { display: flex; gap: 1.25rem; margin-bottom: 2.5rem; }
.milestone-marker { position: relative; width: 16px; flex: 0 0 16px; min-height: 3.4rem; }
.milestone-marker::before {
    content: ""; position: absolute; top: 2px; left: 0;
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--bips-purple); box-shadow: 0 0 14px var(--bips-purple-glow);
}
.milestone-marker::after {
    content: ""; position: absolute; top: 18px; bottom: 0; left: 7px;
    width: 2px; background: linear-gradient(var(--bips-purple), transparent);
}
.milestone-date { font-weight: 600; letter-spacing: .04em; font-size: .95rem; margin-bottom: .35rem; }
.milestone-text { color: #bdbdca; letter-spacing: .08em; font-size: .8rem; line-height: 1.6; }

/* ---------- Foundation ---------- */
.principle { display: flex; gap: 1.4rem; padding: 2.1rem 1.9rem; }
.principle .icon-purple { font-size: 2.3rem; }
.principle h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: .8rem; }
.principle p { color: #bdbdca; margin: 0; line-height: 1.6; }

/* ---------- Ecosystem ---------- */
.form-card { padding: .9rem; }
/* Dark cover tile drawn in CSS (Ecosystem and BiPS Papers cards), so it stays sharp at any size. */
.eco-cover,
.paper-cover {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    border: 1px solid var(--bips-border);
    display: flex; align-items: center; justify-content: center;
    background:
        linear-gradient(225deg, #8b4dff 0 14%, transparent 14.2%),                       /* top-right corner */
        linear-gradient(45deg, #7a3ff0 0 16%, transparent 16.2%),                          /* bottom-left corner */
        repeating-linear-gradient(135deg, rgba(139, 61, 255, .07) 0 20px, transparent 20px 64px),
        radial-gradient(60% 90% at 50% 50%, #1e1536 0%, #0c0a14 100%);
}
.eco-cover { aspect-ratio: 2.3 / 1; }
.eco-cover .bi {
    font-size: 4rem; line-height: 1;
    color: #efe6ff;
    filter: drop-shadow(0 0 6px rgba(166, 107, 255, .95)) drop-shadow(0 0 22px rgba(139, 61, 255, .7));
    transition: transform .3s ease;
}
/* Small "play" triangles, as in the original artwork. */
.eco-cover::before,
.eco-cover::after {
    content: ""; position: absolute;
    width: 14px; height: 16px;
    background: rgba(157, 107, 255, .75);
    clip-path: polygon(0 0, 100% 50%, 0 100%);
}
.eco-cover::before { left: 17%; top: 34%; }
.eco-cover::after { right: 17%; bottom: 28%; opacity: .6; }
@media (prefers-reduced-motion: no-preference) {
    .form-card:hover .eco-cover .bi { transform: scale(1.08); }
}
.form-card .form-body { display: flex; gap: 1.2rem; padding: 1.75rem .9rem 1rem; }
.form-card .icon-purple { font-size: 2rem; }
.form-card h3 { font-size: 1.55rem; font-weight: 600; margin-bottom: 1rem; }
.form-card p { color: #bdbdca; line-height: 1.65; margin: 0; }

/* ---------- Transparency ---------- */
.alloc-block { max-width: 760px; }   /* chart + legend, no longer sharing the row with asset cards */
.alloc-chart { position: relative; width: 100%; max-width: 360px; aspect-ratio: 1; margin-inline: auto; }
.alloc-chart canvas { filter: drop-shadow(0 0 40px rgba(139, 61, 255, .25)); }
.alloc-center {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    text-align: center; pointer-events: none;
    font-family: "Manrope", sans-serif; font-weight: 600; font-size: clamp(.95rem, 1.6vw, 1.2rem); line-height: 1.35;
}
.alloc-legend li { display: flex; align-items: center; gap: .9rem; padding: .55rem 0; font-size: 1.05rem; }
.alloc-legend .dot { width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0; }
.alloc-legend .label { flex-grow: 1; }
.alloc-legend .pct { font-variant-numeric: tabular-nums; color: #e8e8ef; }

.callout-title { color: var(--bips-purple-light); font-weight: 600; font-size: 1.2rem; margin-bottom: .2rem; }

/* BiPS supply breakdown table. On phones each row stacks into a labelled block. */
.supply-card { overflow: hidden; }
.supply-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.supply-table thead th {
    padding: 1rem 1.25rem;
    color: var(--bips-muted);
    font-size: .76rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase;
    text-align: left; vertical-align: bottom;
    border-bottom: 1px solid var(--bips-border-strong);
}
/* Body and total cells (the first cell of each row is a row-header <th>). */
.supply-table tbody > tr > *,
.supply-table tfoot > tr > * {
    padding: 1.05rem 1.25rem;
    vertical-align: top; text-align: left; font-weight: 400;
    color: #c9c9d4;
    border-bottom: 1px solid var(--bips-border);
}
.supply-table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.supply-table thead th.num { text-align: right; }
.supply-table tbody > tr > .cat, .supply-table tfoot > tr > .cat { color: var(--bips-text); font-weight: 600; }
.supply-table .expl { width: 38%; color: var(--bips-muted); font-size: .88rem; line-height: 1.55; }
.supply-table tbody tr:hover { background: rgba(255, 255, 255, .025); }
.supply-table tfoot > tr > * { border-top: 1px solid var(--bips-border-strong); border-bottom: 0; }
.supply-table tfoot > tr > .cat, .supply-table tfoot > tr > .num { color: var(--bips-text); font-weight: 700; }
@media (max-width: 767.98px) {
    /* Column headers stay available to screen readers but take no space (block so overflow applies). */
    .supply-table thead {
        display: block; position: absolute; width: 1px; height: 1px; margin: -1px;
        overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
    }
    .supply-table tr { display: block; padding: 1rem 1.1rem; border-bottom: 1px solid var(--bips-border); }
    .supply-table tfoot tr { border-top: 1px solid var(--bips-border-strong); border-bottom: 0; }
    .supply-table tbody > tr > *,
    .supply-table tfoot > tr > * { display: flex; justify-content: space-between; gap: 1rem; padding: .3rem 0; border: 0; text-align: right; }
    .supply-table .num::before { content: attr(data-label); color: var(--bips-muted); font-size: .8rem; font-weight: 600; text-align: left; }
    .supply-table tbody > tr > .cat, .supply-table tfoot > tr > .cat { font-size: 1.05rem; padding-bottom: .5rem; }
    .supply-table .expl { display: block; width: auto; padding-top: .5rem; text-align: left; }
}

/* Foundation asset split: a 100% stacked bar. Labels sit above their segment on tablet and up. */
.split-card { padding: clamp(1.25rem, 3vw, 2rem); }
.split-legend { display: grid; gap: 1.25rem; margin-bottom: 1.5rem; }
@media (min-width: 768px) {
    /* Same 2px column gap as the bar, so each label starts exactly where its segment does. */
    .split-legend { grid-template-columns: var(--split-cols, 1fr 1fr); column-gap: 2px; }
    .split-item { padding-right: 1.5rem; }
}
.split-item-head { display: flex; align-items: center; gap: .65rem; }
.split-swatch { width: 14px; height: 14px; border-radius: 4px; background: var(--c); flex-shrink: 0; }
.split-value { font-family: "Manrope", sans-serif; font-size: clamp(1.9rem, 3vw, 2.4rem); font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; }
/* Dollar figure for the $100,000 example, next to the percentage. */
.split-amount {
    padding: .25rem .6rem; border-radius: 6px;
    font-size: .9rem; font-weight: 600; font-variant-numeric: tabular-nums;
    color: var(--bips-text); background: rgba(255, 255, 255, .06); border: 1px solid var(--bips-border);
}
.split-label { font-weight: 600; margin: .55rem 0 .2rem; }
.split-detail { color: var(--bips-muted); font-size: .92rem; line-height: 1.5; margin: 0; }
.split-detail a { color: var(--bips-purple-light); white-space: nowrap; }
.split-count { margin: .45rem 0 0; font-size: .92rem; color: var(--bips-muted); }
.split-count strong { color: var(--bips-text); font-weight: 600; }
.split-bar { display: flex; gap: 2px; height: 24px; }
.split-seg { position: relative; min-width: 4px; background: var(--c); transition: opacity .2s ease; }
.split-seg:first-child { border-radius: 4px 0 0 4px; }
.split-seg:last-child { border-radius: 0 4px 4px 0; }
.split-bar:hover .split-seg:not(:hover) { opacity: .45; }
.split-seg::after {
    content: attr(data-tip);
    position: absolute; top: calc(100% + 8px); left: 50%;
    transform: translateX(-50%);
    padding: .45rem .7rem; border-radius: 6px;
    white-space: nowrap; font-size: .85rem; color: var(--bips-text);
    background: #15151d; border: 1px solid rgba(139, 61, 255, .5);
    opacity: 0; pointer-events: none;
    transition: opacity .15s ease;
}
.split-seg:hover::after { opacity: 1; }
/* Keep the end tooltips inside the bar so they never push the page wider. */
.split-seg:first-child::after { left: 0; transform: none; }
.split-seg:last-child::after { left: auto; right: 0; transform: none; }

/* ---------- Papers ---------- */
.paper-card { display: flex; flex-direction: column; padding: .9rem; }
.paper-cover { aspect-ratio: 1.5 / 1; border-radius: 10px; }
/* Logo in the middle of each cover: a round badge (BiPS, Bitcoin) or an inline SVG mark (Ethereum, Solana). */
.coin {
    width: 76px; height: 76px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff;
    transition: transform .3s ease;
}
.coin-bips {
    font-family: "Manrope", sans-serif; font-weight: 800; font-size: 1.35rem; letter-spacing: -.03em;
    background: radial-gradient(circle at 35% 30%, #a35bff, #7a2cf0 70%);
    box-shadow: 0 0 30px rgba(139, 61, 255, .55);
}
.coin-img { width: 76px; height: 76px; object-fit: contain; filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .45)); transition: transform .3s ease; }   /* stablecoin logos */
.coin-btc {
    font-size: 2.6rem;
    background: #f7931a;
    box-shadow: 0 0 30px rgba(247, 147, 26, .35);
}
.coin-btc .bi { transform: rotate(14deg); }
.coin-svg {
    height: 84px; width: auto;
    filter: drop-shadow(0 6px 18px rgba(0, 0, 0, .45));
    transition: transform .3s ease;
}
.coin-svg.coin-sol { height: 54px; }
@media (prefers-reduced-motion: no-preference) {
    .paper-card:hover .coin,
    .paper-card:hover .coin-img,
    .paper-card:hover .coin-svg { transform: scale(1.08); }
}
.paper-card h4 { font-family: "Inter", sans-serif; font-size: 1.2rem; font-weight: 500; line-height: 1.3; letter-spacing: -.01em; margin: 1.1rem 0 .45rem; }
.paper-meta { font-family: var(--bs-font-monospace); color: var(--bips-muted); letter-spacing: .1em; font-size: .8rem; margin-bottom: 1.25rem; }
.paper-meta .sep { margin-inline: .5rem; opacity: .7; }
.btn-download {
    --bs-btn-color: var(--bips-text);
    --bs-btn-border-color: var(--bips-border-strong);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: rgba(139, 61, 255, .14);
    --bs-btn-hover-border-color: var(--bips-purple-light);
    --bs-btn-active-bg: rgba(139, 61, 255, .22);
    --bs-btn-padding-y: .75rem;
    --bs-btn-padding-x: .8rem;
    --bs-btn-font-size: .9rem;
    --bs-btn-border-radius: 8px;
    display: flex; align-items: center; gap: .55rem;
    margin-top: auto;
    white-space: nowrap;
}
.btn-download .bi { font-size: 1.1rem; }

/* ---------- Sub-heading with a divider line (BiPS token contracts) ---------- */
.group-title {
    display: flex; align-items: center; gap: 1.25rem;
    font-size: 1.3rem; font-weight: 700; margin-bottom: 1.75rem;
}
.group-title::after { content: ""; flex: 1; height: 1px; background: var(--bips-border); }
/* Intro paragraphs directly under a group title. */
.group-title + .group-lead { margin-top: -.75rem; }
.group-lead { max-width: 60rem; color: #c3c3cf; line-height: 1.6; margin-bottom: .75rem; }
.group-lead:has(+ :not(.group-lead)) { margin-bottom: 1.75rem; }   /* last intro paragraph before the content */

/* ---------- BiPS token contracts ---------- */
.contract-card { display: flex; flex-direction: column; padding: 1.75rem; }
.contract-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.1rem; }
.chain-tag { color: var(--bips-purple-light); font-size: .8rem; font-weight: 600; letter-spacing: .1em; margin-bottom: .35rem; }
.contract-title { font-size: 1.45rem; font-weight: 700; margin: 0; }
.contract-stat { text-align: right; flex-shrink: 0; }
.contract-stat-value { display: block; font-family: "Manrope", sans-serif; font-size: 1.6rem; font-weight: 700; line-height: 1.1; }
.contract-stat-label { color: var(--bips-muted); font-size: .85rem; }
.contract-text { color: #bdbdca; line-height: 1.65; margin-bottom: 1.25rem; }
.contract-text code { color: var(--bips-text); font-size: .85em; word-break: break-all; }
.address-label { display: block; color: var(--bips-muted); font-size: .78rem; font-weight: 600; letter-spacing: .1em; margin-bottom: .4rem; }
.address-row {
    display: flex; align-items: center; gap: .5rem;
    margin-bottom: 1.5rem; padding: .5rem .5rem .5rem .9rem;
    background: #0d0e13; border: 1px solid var(--bips-border-strong); border-radius: 8px;
}
.address-row code { flex: 1; min-width: 0; color: var(--bips-text); font-size: .88rem; word-break: break-all; }
.copy-btn {
    flex-shrink: 0; width: 36px; height: 36px;
    display: inline-flex; align-items: center; justify-content: center;
    color: var(--bips-text); background: transparent;
    border: 1px solid var(--bips-border-strong); border-radius: 6px;
    transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}
.copy-btn:hover, .copy-btn:focus-visible { background: rgba(139, 61, 255, .18); border-color: var(--bips-purple-light); }
.copy-btn.is-copied { color: var(--bips-teal); border-color: rgba(20, 200, 180, .6); }
.contract-link {
    --bs-btn-padding-y: .7rem;
    --bs-btn-padding-x: 1.2rem;
    --bs-btn-font-size: 1rem;
    align-self: flex-start;
    margin-top: auto;
}

/* ---------- Contact ---------- */
.contact-title { font-size: clamp(2.75rem, 5vw, 4.5rem); white-space: nowrap; }
.contact-email { display: inline-flex; align-items: center; gap: 1.1rem; color: var(--bips-text); text-decoration: none; font-size: clamp(1.1rem, 1.6vw, 1.35rem); }
.contact-email:hover { color: var(--bips-purple-light); }
.contact-email .email-icon {
    width: 58px; height: 58px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    border: 2px solid var(--bips-purple); color: var(--bips-purple); font-size: 1.35rem;
    flex-shrink: 0;
}
.contact-panel { padding: clamp(1.5rem, 4vw, 3.25rem); border-radius: 26px; border-color: var(--bips-border-strong); }
.contact-panel .form-control {
    background: #0d0e13;
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 8px;
    color: var(--bips-text);
    padding: 1rem 1.5rem;
    font-size: 1.05rem;
}
.contact-panel .form-control::placeholder { color: #9a9aa8; }
.contact-panel .form-control:focus {
    border-color: var(--bips-purple);
    box-shadow: 0 0 0 .2rem rgba(139, 61, 255, .25);
    background: #0f1016;
}
.contact-panel textarea.form-control { min-height: 142px; }
.form-status { margin-top: 1.5rem; padding: .9rem 1.1rem; border-radius: 8px; border: 1px solid transparent; }
.form-status:empty { display: none; }
.form-status.is-success { color: #8cf2e5; background: rgba(20, 200, 180, .1); border-color: rgba(20, 200, 180, .45); }
.form-status.is-error { color: #ffa3ad; background: rgba(220, 53, 69, .1); border-color: rgba(220, 53, 69, .45); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--bips-border); padding-block: 2rem; color: var(--bips-muted); font-size: .92rem; }
.site-footer .brand { font-size: 1.5rem; font-weight: 800; color: #fff; text-decoration: none; }

/* ---------- UK visitor notice (modal) ---------- */
.risk-modal {
    --bs-modal-bg: #101016;
    --bs-modal-border-color: var(--bips-border-strong);
    --bs-modal-header-border-color: var(--bips-border);
    --bs-modal-footer-border-color: var(--bips-border);
    --bs-modal-padding: 1.5rem;
}
.risk-modal .modal-title { font-size: 1rem; font-weight: 700; letter-spacing: .1em; color: var(--bips-purple-light); }
.risk-modal .modal-body { color: #c9c9d4; line-height: 1.65; }
.risk-modal .modal-body h3 { font-size: 1.1rem; font-weight: 700; color: var(--bips-text); margin: 1.5rem 0 .9rem; }
.risk-modal .modal-body a { color: var(--bips-purple-light); }
.risk-modal-callout {
    padding: .85rem 1rem;
    border-left: 3px solid var(--bips-purple);
    background: rgba(139, 61, 255, .1);
    border-radius: 0 6px 6px 0;
    color: var(--bips-text);
    font-weight: 600;
}
.risk-reading-time {
    margin-top: 1.75rem;
    color: var(--bips-muted);
    font-size: .85rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
}
.risk-list { padding-left: 1.25rem; margin-bottom: 1.5rem; }
.risk-list > li { margin-bottom: 1rem; }
.risk-list > li > strong { color: var(--bips-text); }
.risk-list ul { padding-left: 1.1rem; margin: .4rem 0 0; }
.risk-list ul li { margin-bottom: .35rem; }
.risk-modal .btn-bips { --bs-btn-padding-y: .65rem; --bs-btn-padding-x: 1.4rem; --bs-btn-font-size: 1rem; }

@media (max-width: 575.98px) {
    .stat-card, .principle { padding: 1.5rem 1.25rem; gap: 1.1rem; }
    .callout { flex-direction: column; align-items: flex-start; gap: 1rem; padding: 1.4rem; }
    .callout .v-divider { display: none; }
    .milestone { gap: 1.25rem; }
    .contract-card { padding: 1.4rem; }
    .contract-head { flex-direction: column; gap: .75rem; }
    .contract-stat { text-align: left; }
}