/* ==========================================================================
   Bio-Resources Consulting design layer
   Loaded last on every page, on top of the Elementor/WordPress CSS.
   Tokens and rules are documented in DESIGN.md.
   ========================================================================== */

/* ---------- Fonts (self-hosted, latin subset, variable weight) ---------- */
@font-face {
    font-family: "Fraunces";
    font-style: normal;
    font-weight: 300 800;
    font-display: swap;
    src: url("../fonts/fraunces-latin.woff2") format("woff2");
}
@font-face {
    font-family: "Fraunces";
    font-style: italic;
    font-weight: 300 800;
    font-display: swap;
    src: url("../fonts/fraunces-italic-latin.woff2") format("woff2");
}
@font-face {
    font-family: "IBM Plex Sans";
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url("../fonts/ibm-plex-sans-latin.woff2") format("woff2");
}

/* ---------- Tokens ---------- */
:root {
    /* colour: one dominant green, one sharp lime accent */
    --brc-green-900: #163a2f;   /* deepest, footer / overlays */
    --brc-green-700: #214c3f;   /* primary (logo dark green) */
    --brc-green-500: #3f7a5d;
    --brc-lime-500:  #85c945;   /* accent (logo lime) - highlights only */
    --brc-lime-100:  #e7f3d9;
    --brc-ink:       #1d2622;   /* headings */
    --brc-text:      #3b4741;   /* body copy */
    --brc-muted:     #6b766f;
    --brc-paper:     #ffffff;
    --brc-mist:      #f3f6f1;   /* section background, warm green-grey */
    --brc-line:      #dfe6df;

    /* type */
    --brc-font-display: "Fraunces", Georgia, "Times New Roman", serif;
    --brc-font-body: "IBM Plex Sans", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Feed the tokens into Elementor's global kit so existing widgets follow */
.elementor-kit-5 {
    --e-global-color-primary: var(--brc-green-700);
    --e-global-color-text: var(--brc-text);
    --e-global-color-accent: var(--brc-lime-500);
    --e-global-color-4e8c53c: var(--brc-mist);
    --e-global-typography-primary-font-family: "Fraunces";
    --e-global-typography-secondary-font-family: "IBM Plex Sans";
    --e-global-typography-text-font-family: "IBM Plex Sans";
    --e-global-typography-accent-font-family: "IBM Plex Sans";
}

/* ---------- Body font everywhere (replaces hard-coded Inter) ---------- */
/* :where() keeps specificity at zero so the heading rules below win */
:where(body, body *:not(svg, svg *, .dashicons, [class^="eicon"], [class*=" eicon"])) {
    font-family: var(--brc-font-body) !important;
}
/* the WordPress custom CSS forces Inter on the menus with !important */
body .suki-header-main-bar,
body .suki-header-main-bar a,
body .suki-header-main-bar .suki-menu-item-link,
body .suki-header-mobile-main-bar,
body .suki-header-mobile-main-bar a,
body .suki-popup-content .menu-item a,
body .suki-popup-content .suki-menu-item-link {
    font-family: var(--brc-font-body) !important;
}
body {
    color: var(--brc-text);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ---------- Display font for headlines ---------- */
h1, h1 *, h2, h2 *,
.bdt-title-tag, .bdt-title-tag *, .bdt-main-title,
.brc-proj h2 {
    font-family: var(--brc-font-display) !important;
    font-optical-sizing: auto;
    font-weight: 600 !important;
    letter-spacing: -0.015em;
    color: inherit;
}
h1, .bdt-title-tag {
    letter-spacing: -0.025em;
    line-height: 1.05;
}
h2.elementor-heading-title {
    line-height: 1.12;
}
/* Small headings stay in the body face, bold, for contrast with the display face */
h3.elementor-icon-box-title, h4, h5, h6 {
    font-family: var(--brc-font-body) !important;
    font-weight: 600;
    letter-spacing: -0.005em;
}
/* the founder quote on About reads as a pull quote */
h5.elementor-heading-title,
h5.elementor-heading-title * {
    font-family: var(--brc-font-display) !important;
    font-style: normal;
    font-weight: 400 !important;
    line-height: 1.4;
}

/* project case study uses the shared section background */
.brc-proj { background: var(--brc-mist); }

/* ---------- Accent: lime used sparingly ---------- */
::selection {
    background: var(--brc-lime-500);
    color: var(--brc-green-900);
}
:focus-visible {
    outline: 2px solid var(--brc-lime-500);
    outline-offset: 3px;
}
.entry-content a:not(.elementor-button):hover,
.elementor-widget-text-editor a:hover {
    color: var(--brc-green-500);
    text-decoration-color: var(--brc-lime-500);
}

/* ==========================================================================
   Shared components
   ========================================================================== */

/* Small pill label above a section headline */
.brc-tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--brc-lime-100);
    color: var(--brc-green-700);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .02em;
}

/* Scroll reveal: elements with [data-reveal] fade up in sequence (assets/js/brc.js) */
.brc-js [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s ease-out, transform .6s ease-out;
    transition-delay: calc(var(--brc-i, 0) * 120ms);
}
.brc-js [data-reveal].is-visible {
    opacity: 1;
    transform: none;
}
@media (prefers-reduced-motion: reduce) {
    .brc-js [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------- Home: How we work ---------- */
.brc-process {
    background: var(--brc-paper);
    padding: 104px 24px 112px;
}
.brc-process-inner { max-width: 1140px; margin: 0 auto; }
.brc-process-head { max-width: 720px; margin-bottom: 64px; }
.brc-process-head h2 {
    font-size: clamp(2rem, 3.6vw, 3rem);
    color: var(--brc-ink);
    margin: 18px 0 16px;
}
.brc-process-head h2 em {
    white-space: nowrap;
    font-style: italic;
    font-weight: 500 !important;
    color: var(--brc-green-500);
}
.brc-process-head p {
    font-size: 1.08rem;
    line-height: 1.7;
    color: var(--brc-muted);
    margin: 0;
}

.brc-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 32px;
    position: relative;
}
/* the line connecting the steps */
.brc-steps::before {
    content: "";
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--brc-lime-500), var(--brc-line) 70%);
}
.brc-step { position: relative; padding-top: 0; }
.brc-step-num {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--brc-paper);
    border: 1px solid var(--brc-line);
    font-family: var(--brc-font-display) !important;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--brc-green-700);
    margin-bottom: 26px;
}
.brc-step-num::after {
    content: "";
    position: absolute;
    top: 4px;
    right: 4px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--brc-lime-500);
}
.brc-step h3 {
    font-size: 1.25rem;
    color: var(--brc-ink);
    margin: 0 0 10px;
}
.brc-step p {
    font-size: .98rem;
    line-height: 1.65;
    color: var(--brc-text);
    margin: 0;
}
.brc-process-link {
    display: inline-flex;
    gap: 8px;
    margin-top: 56px;
    font-weight: 600;
    color: var(--brc-green-700);
    text-decoration: none;
    border-bottom: 2px solid var(--brc-lime-500);
    padding-bottom: 4px;
}
.brc-process-link:hover { color: var(--brc-green-500); }

@media (max-width: 960px) {
    .brc-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
    .brc-steps::before { display: none; }
}
@media (max-width: 600px) {
    .brc-process { padding: 72px 16px 80px; }
    .brc-process-head { margin-bottom: 44px; }
    /* vertical timeline on phones */
    .brc-steps { grid-template-columns: 1fr; row-gap: 36px; padding-left: 80px; }
    .brc-steps::before {
        display: block;
        top: 0;
        bottom: 0;
        left: 30px;
        right: auto;
        width: 1px;
        height: auto;
        background: linear-gradient(180deg, var(--brc-lime-500), var(--brc-line) 70%);
    }
    .brc-step-num { position: absolute; left: -80px; top: -14px; margin: 0; }
}

/* ---------- Home: Featured project ---------- */
.brc-featured {
    background: var(--brc-mist);
    padding: 96px 24px 104px;
}
.brc-featured-inner { max-width: 1140px; margin: 0 auto; }
.brc-featured-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    margin-top: 22px;
    background: var(--brc-paper);
    border: 1px solid var(--brc-line);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 48px -32px rgba(22, 58, 47, .35);
}
.brc-featured-media {
    position: relative;
    min-height: 420px;
    background: var(--brc-green-900);
}
.brc-featured-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.brc-featured-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(22, 58, 47, .05) 30%, rgba(22, 58, 47, .85) 100%);
}
.brc-featured-stat {
    position: absolute;
    left: 28px;
    right: 28px;
    bottom: 28px;
    z-index: 1;
    color: #fff;
}
.brc-featured-stat strong {
    display: block;
    font-family: var(--brc-font-display) !important;
    font-size: clamp(2.6rem, 4.4vw, 3.6rem);
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--brc-lime-500);
    margin-bottom: 8px;
}
.brc-featured-stat span {
    display: block;
    max-width: 320px;
    font-size: .95rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, .9);
}
.brc-featured-body {
    padding: 48px 52px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.brc-featured-meta {
    list-style: none;
    margin: 0 0 18px;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.brc-featured-meta li {
    padding: 5px 12px;
    border: 1px solid var(--brc-line);
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 500;
    color: var(--brc-muted);
}
.brc-featured-body h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--brc-ink);
    margin: 0 0 16px;
    line-height: 1.12;
}
.brc-featured-body h2 em {
    font-style: italic;
    font-weight: 500 !important;
    color: var(--brc-green-500);
}
.brc-featured-body p {
    font-size: 1.02rem;
    line-height: 1.7;
    color: var(--brc-text);
    margin: 0;
}
.brc-featured-body .brc-process-link { margin-top: 28px; align-self: flex-start; }
.brc-featured-card:hover .brc-featured-media img { transform: scale(1.03); }
.brc-featured-media img { transition: transform .6s ease-out; }

@media (max-width: 900px) {
    .brc-featured-card { grid-template-columns: 1fr; }
    .brc-featured-media { min-height: 300px; }
    .brc-featured-body { padding: 32px 26px 36px; }
}
@media (max-width: 600px) {
    .brc-featured { padding: 72px 16px 80px; }
    .brc-featured-stat { left: 20px; right: 20px; bottom: 20px; }
}
@media (prefers-reduced-motion: reduce) {
    .brc-featured-media img { transition: none; }
    .brc-featured-card:hover .brc-featured-media img { transform: none; }
}

/* ---------- WuhaSense research page (wuhasense.html) ---------- */
.brc-ws-accent {
    font-style: italic;
    color: var(--brc-green-500);
}
.brc-ws { background: var(--brc-paper); padding: 96px 24px; }
.brc-ws h2 {
    font-size: clamp(1.9rem, 3.2vw, 2.6rem);
    line-height: 1.15;
    color: var(--brc-ink);
    margin: 0 0 18px;
}
.brc-ws h3 { font-size: 1.15rem; color: var(--brc-ink); margin: 0 0 14px; font-weight: 600; }
.brc-ws-figures {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin: 0 0 32px;
}
.brc-ws-figure {
    border: 1px solid var(--brc-line);
    border-radius: 14px;
    padding: 24px 24px 22px;
    background: var(--brc-paper);
}
.brc-ws-num {
    display: block;
    font-family: var(--brc-font-display) !important;
    font-weight: 600;
    font-size: clamp(2.4rem, 4vw, 3.2rem);
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--brc-green-700);
    margin-bottom: 10px;
}
.brc-ws-figure:last-child .brc-ws-num {
    text-decoration: underline;
    text-decoration-color: var(--brc-lime-500);
    text-decoration-thickness: 4px;
    text-underline-offset: 8px;
}
.brc-ws-label { display: block; font-size: .95rem; line-height: 1.5; color: var(--brc-text); }
.brc-ws-card {
    margin: 0 0 24px;
    background: var(--brc-paper);
    border: 1px solid var(--brc-line);
    border-radius: 16px;
    padding: 26px 28px 18px;
}
.brc-ws-card figcaption {
    font-style: normal;
    text-align: left;
    font-size: .98rem;
    line-height: 1.6;
    color: var(--brc-text);
    margin: 0 0 14px;
    max-width: 820px;
}
.brc-ws-card figcaption strong { color: var(--brc-ink); }
.brc-ws-chart { display: block; width: 100%; height: auto; }
.brc-ws-chart .ws-axis { font-size: 13px; fill: var(--brc-muted); }
.brc-ws-chart .ws-val { font-size: 13px; font-weight: 600; fill: var(--brc-ink); }
.brc-ws-chart .ws-note { font-size: 12px; fill: var(--brc-muted); letter-spacing: .04em; text-transform: uppercase; }
.brc-ws-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin: 8px 0 24px;
}
.brc-ws-box {
    background: var(--brc-mist);
    border-radius: 16px;
    padding: 26px 28px;
}
.brc-ws-box .brc-proj-list { margin-bottom: 0; }
/* single full-width Next steps box, and the one Why card on the WuhaSense page */
.brc-ws-next { margin: 8px 0 24px; }
/* three Why cards: the odd last card spans the full row */
.brc-ws-why .brc-proj-issue:last-child:nth-child(odd) { grid-column: 1 / -1; }
.brc-ws-source { font-size: .85rem; line-height: 1.6; color: var(--brc-muted); margin: 0; }
@media (max-width: 900px) {
    .brc-ws { padding: 64px 16px; }
    .brc-ws-figures, .brc-ws-two { grid-template-columns: 1fr; }
    .brc-ws-card { padding: 20px 16px 12px; }
    .brc-ws-card { overflow-x: auto; }
    .brc-ws-chart-wide { min-width: 640px; }
}

/* Projects overview: one card per project, each linking to its own page */
.brc-projects { background: var(--brc-mist); padding: 96px 24px; }
.brc-projects-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.brc-project-card {
    display: flex; flex-direction: column; background: var(--brc-paper); border: 1px solid var(--brc-line);
    border-radius: 16px; overflow: hidden; color: inherit; text-decoration: none;
    transition: box-shadow .25s ease-out, transform .25s ease-out;
}
.brc-project-card:hover { box-shadow: 0 14px 34px rgba(22, 58, 47, .12); transform: translateY(-3px); }
.brc-project-card:focus-visible { outline: 3px solid var(--brc-lime-500); outline-offset: 3px; }
.brc-project-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--brc-green-900); }
.brc-project-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease-out; }
.brc-project-card:hover .brc-project-media img { transform: scale(1.03); }
.brc-project-body { padding: 26px 28px 30px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.brc-project-body .brc-proj-tag { align-self: flex-start; margin: 0; }
.brc-project-body h2 { font-size: clamp(1.5rem, 2.3vw, 1.9rem); line-height: 1.15; color: var(--brc-ink); margin: 0; }
.brc-project-body p { margin: 0; line-height: 1.65; color: var(--brc-text); }
.brc-project-body .brc-process-link { margin-top: auto; padding-top: 6px; align-self: flex-start; }
.brc-back { margin: 0 0 22px; font-size: .92rem; }
.brc-back a { color: var(--brc-green-700); font-weight: 600; text-decoration: none; }
.brc-back a:hover { color: var(--brc-green-500); text-decoration: underline; text-decoration-color: var(--brc-lime-500); }
@media (max-width: 900px) {
    .brc-projects { padding: 64px 16px; }
    .brc-projects-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    .brc-project-card, .brc-project-media img { transition: none; }
    .brc-project-card:hover { transform: none; }
    .brc-project-card:hover .brc-project-media img { transform: none; }
}

/* WuhaSense interactive explorer */
.brc-ws-explorer { position: relative; padding-bottom: 22px; }
.brc-ws-explorer h3, .brc-ws-two .brc-ws-card h3 { margin-bottom: 6px; }
.brc-ws-hint { font-size: .92rem; line-height: 1.6; color: var(--brc-muted); margin: 0 0 18px; }
.brc-ws-controls { display: flex; flex-wrap: wrap; gap: 16px 22px; align-items: flex-end; margin-bottom: 14px; }
.brc-ws-field { display: flex; flex-direction: column; gap: 6px; font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--brc-muted); }
.brc-ws-field select {
    min-width: 220px; padding: 9px 36px 9px 12px; border: 1px solid var(--brc-line); border-radius: 10px;
    background: var(--brc-paper); color: var(--brc-ink); font-size: .95rem; font-weight: 500; letter-spacing: 0; text-transform: none;
}
.brc-ws-years { display: inline-flex; border: 1px solid var(--brc-line); border-radius: 999px; padding: 3px; background: var(--brc-mist); }
.brc-ws-years button {
    border: 0; background: transparent; color: var(--brc-text); padding: 7px 14px; border-radius: 999px;
    font-size: .9rem; font-weight: 500; letter-spacing: 0; text-transform: none; cursor: pointer;
}
.brc-ws-years button[aria-pressed="true"] { background: var(--brc-green-700); color: #fff; }
.brc-ws-years button:hover:not([aria-pressed="true"]) { background: var(--brc-lime-100); }
.brc-ws-field select:focus-visible, .brc-ws-years button:focus-visible, .brc-ws-toggles input:focus-visible, .brc-ws-table tr:focus-visible {
    outline: 3px solid var(--brc-lime-500); outline-offset: 2px;
}
.brc-ws-toggles { display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; font-size: .92rem; color: var(--brc-text); margin-bottom: 8px; }
.brc-ws-toggles label { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; }
.brc-ws-toggles input { accent-color: var(--brc-green-700); width: 16px; height: 16px; }
.brc-ws-legend { display: inline-flex; align-items: center; gap: 7px; color: var(--brc-muted); margin-left: auto; }
.brc-ws-key { display: inline-block; width: 18px; height: 0; border-top: 3px solid; vertical-align: middle; }
.brc-ws-key-green { border-color: var(--brc-green-700); }
.brc-ws-key-grey { border-color: #a7b2ab; }
.brc-ws-key-dash { border-top: 2px dashed var(--brc-green-500); }
.brc-ws-key-rain { height: 10px; width: 10px; border: 0; background: #b9d3e0; border-radius: 2px; }
.brc-ws-key-alert { width: 12px; height: 12px; border: 1.6px solid var(--brc-green-900); background: var(--brc-lime-500); border-radius: 50%; margin-left: 10px; }
.brc-ws-chartwrap { position: relative; }
.brc-ws-chartwrap svg { touch-action: pan-y; }
.brc-ws-tip {
    position: absolute; transform: translate(-50%, -100%); pointer-events: none; z-index: 2;
    background: var(--brc-green-900); color: #fff; font-size: .85rem; line-height: 1.5;
    padding: 9px 12px; border-radius: 10px; box-shadow: 0 6px 18px rgba(22, 58, 47, .25); white-space: nowrap;
}
.brc-ws-tip .ws-tip-muted { color: #c9d8cf; }
.brc-ws-tip .ws-tip-alert { color: var(--brc-lime-500); font-weight: 600; }
.brc-ws-summary { font-size: .9rem; color: var(--brc-muted); margin: 6px 0 0; }
.brc-ws-two-wide { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
.brc-ws-tablewrap { max-height: 330px; overflow: auto; }
.brc-ws-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.brc-ws-table th { text-align: left; font-size: .74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--brc-muted); padding: 8px 10px; border-bottom: 1px solid var(--brc-line); background: var(--brc-paper); position: sticky; top: 0; }
.brc-ws-table td { padding: 10px; border-bottom: 1px solid var(--brc-line); color: var(--brc-text); vertical-align: top; line-height: 1.45; }
.brc-ws-table td:first-child { white-space: nowrap; font-weight: 600; color: var(--brc-ink); }
.brc-ws-table tbody tr { cursor: pointer; transition: background-color .15s ease-out; }
.brc-ws-table tbody tr:hover { background: var(--brc-lime-100); }
@media (max-width: 900px) {
    .brc-ws-two-wide { grid-template-columns: 1fr; }
    .brc-ws-field, .brc-ws-field select { width: 100%; min-width: 0; }
    .brc-ws-legend { margin-left: 0; }
    .brc-ws-chartwrap { overflow-x: auto; }
    .brc-ws-years button { padding: 7px 11px; }
}
@media (prefers-reduced-motion: reduce) {
    .brc-ws-table tbody tr { transition: none; }
}

/* ---------- Source citations (small superscript numbers + numbered list) ---------- */
.brc-cite { font-size: .7em; line-height: 0; margin-left: 1px; }
.brc-cite a { color: var(--brc-green-500); text-decoration: none; font-weight: 600; }
.brc-cite a:hover { text-decoration: underline; }
.brc-refs {
    margin: 0 0 40px;
    padding-left: 20px;
    font-size: .8rem;
    line-height: 1.55;
    color: var(--brc-muted);
}
.brc-refs li { margin-bottom: 4px; padding-left: 2px; }
.brc-refs a { color: var(--brc-green-500); word-break: break-word; }
.brc-refs li:target { color: var(--brc-ink); }
.brc-proj-issues.brc-ws-why { margin-bottom: 16px; }