@font-face {
  font-family: 'PP NeueBit';
  src: url('PPNeueBit-Bold.otf') format('opentype');
  font-weight: bold;
}
@font-face {
  font-family: 'Melodrame';
  src: url('melodrame.ttf') format('truetype');
  font-weight: normal;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Type scale (Refactoring UI) ─────────────────────────
   xs   11px  uppercase labels, captions
   sm   13px  secondary body, card metadata
   base 15px  primary body
   lg   18px  large body / small UI headings
   xl   24px  sub-section headings
   2xl  36px  section headings
   3xl  52px  display / hero supporting
   4xl  72px  hero headline
─────────────────────────────────────────────────── */

:root {
  --font-neuebit:   'PP NeueBit', monospace;
  --font-melodrame: 'Melodrame', cursive;
  --font-sans:      'Inter', system-ui, sans-serif;

  --green:          #00e99a;
  --green-dim:      #32cd73;
  --green-border:   rgba(0, 233, 154, 0.39);
  --green-border2:  rgba(50, 205, 115, 0.12);
  --bg:             #111512;
  --bg-card:        #151916;
  --text:           #e5e5e5;
  --text-muted:     rgba(255,255,255,0.45);

  --page-w: 1512px;
  --col-pad: 96px;
}

html { background: var(--bg); }

body {
  background: var(--bg);
  color: white;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  max-width: var(--page-w);
  margin: 0 auto;
  overflow-x: hidden;
  position: relative;
}

/* ── Background texture ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("https://www.figma.com/api/mcp/asset/beb62ef6-08d1-4692-9ea5-67d43ca2bf8a");
  background-size: cover;
  mix-blend-mode: exclusion;
  opacity: 0.25;
  pointer-events: none;
  z-index: 100;
}

/* ════════════════════════════
   NAV
════════════════════════════ */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px var(--col-pad);
  position: sticky;
  top: 0;
  background: linear-gradient(to bottom, var(--bg) 85%, rgba(17, 21, 18, 0.8));
  z-index: 999;
  backdrop-filter: blur(8px);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}
.nav-logo img {
  height: 28px;
  width: auto;
  object-fit: contain;
  display: block;
}
.nav-logo-text {
  font-family: var(--font-neuebit);
  font-size: 22px;
  font-weight: bold;
  color: white;
  line-height: 1;
  letter-spacing: 0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.15s, background 0.15s;
  border-radius: 6px;
  padding: 4px 10px;
}
.nav-links a:not(.nav-cta):hover {
  color: white;
  background: rgba(255,255,255,0.08);
}
.nav-cta {
  background: var(--green) !important;
  color: var(--bg) !important;
  opacity: 1 !important;
  padding: 8px 18px 7px;
  border-radius: 6px;
  font-family: var(--font-neuebit) !important;
  font-size: 17px !important;
  font-weight: bold;
  letter-spacing: 0.01em;
}

/* ════════════════════════════
   HERO
════════════════════════════ */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 64px var(--col-pad) 80px;
}
.hero-left { display: flex; flex-direction: column; gap: 24px; }

.hero-headline {
  font-family: var(--font-neuebit);
  font-size: 72px;
  font-weight: bold;
  line-height: 1.0;
  color: white;
  letter-spacing: -0.01em;
}
.hero-headline .energy-word {
  font-family: var(--font-melodrame);
  font-size: 64px;
  color: var(--green);
  display: inline;
}
.hero-sub {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 440px;
}
.hero-btn {
  display: inline-flex;
  align-items: center;
  background: var(--green);
  color: var(--bg);
  padding: 12px 24px 10px;
  border-radius: 8px;
  font-family: var(--font-neuebit);
  font-size: 20px;
  font-weight: bold;
  width: fit-content;
  cursor: pointer;
  text-decoration: none;
  letter-spacing: 0.01em;
}

/* stat cards — right side of hero */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 16px;
}
.stat-card {
  background: rgba(17,21,18,0.4);
  border: 1px solid var(--green-border);
  padding: 20px 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.s-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.s-value {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 42px;
  line-height: 1.1;
  color: var(--green);
}
.s-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

/* ════════════════════════════
   DIVIDER
════════════════════════════ */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(50,205,115,0.2), transparent);
  margin: 0 var(--col-pad);
}

/* ════════════════════════════
   CONNECTOR SECTIONS
════════════════════════════ */

/* Shared box card */
.box-card {
  background: var(--bg-card);
  border: 1px solid #33906f;
  padding: 28px 32px;
}
.box-title {
  font-family: var(--font-neuebit);
  font-size: 13px;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  margin-bottom: 10px;
}
.box-body {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

/* Shared square marker (filled + outlined overlapping) */
.sq-wrap {
  position: relative;
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}
.sq-outline {
  position: absolute;
  inset: 0;
  border: 0.5px solid #32cd73;
}
.sq-fill {
  position: absolute;
  top: 5px; left: 5px;
  width: 16px; height: 16px;
  background: #32cd73;
}

/* ── Research Question row ──
   [box ~55%] [deco with path + squares ~45%]  */
.research-section {
  display: flex;
  align-items: flex-start;
  gap: 0;
  padding: 72px var(--col-pad) 0;
}
.research-box {
  flex: 0 0 52%;
}
.research-deco {
  flex: 1;
  position: relative;
  min-height: 140px;
  display: flex;
  align-items: flex-end;
}
.research-deco img {
  width: 200px;
  height: auto;
  display: block;
}
.research-deco .sq-wrap {
  position: absolute;
  right: 48px;
  bottom: -4px;
}

/* ── Inform Scaling row ──
   [deco with squares + path ~8%] [gap] [box ~55%, pushed right]  */
.scaling-section {
  display: flex;
  align-items: flex-start;
  padding: 48px var(--col-pad) 80px;
}
.scaling-deco {
  flex: 0 0 80px;
  position: relative;
  min-height: 130px;
  margin-top: 4px;
}
.scaling-deco .sq-wrap {
  position: absolute;
  top: 0; left: 0;
}
.scaling-deco img {
  position: absolute;
  top: 32px; left: 4px;
  width: 68px;
  height: auto;
  transform: rotate(-90deg) scaleY(-1);
  transform-origin: center center;
}
.scaling-spacer { flex: 1; }
.scaling-box {
  flex: 0 0 52%;
}

/* ════════════════════════════
   OUR PURPOSE
════════════════════════════ */
.purpose-section {
  padding: 80px var(--col-pad);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.purpose-section h2 {
  font-family: var(--font-neuebit);
  font-size: 64px;
  font-weight: bold;
  line-height: 1;
  color: white;
  letter-spacing: -0.01em;
}
.purpose-section p {
  font-size: 18px;
  color: var(--text);
  line-height: 1.7;
  max-width: 640px;
}
.purpose-section strong { font-weight: 700; }

/* ════════════════════════════
   THREE CORE CONCLUSIONS
════════════════════════════ */
.conclusions-section {
  padding: 24px var(--col-pad) 80px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.conclusions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.conclusion-card {
  background: var(--bg-card);
  border: 1px solid var(--green-border);
  padding: 28px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}
.conclusion-card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}
.conclusion-num {
  font-family: var(--font-neuebit);
  font-size: 14px;
  font-weight: bold;
  letter-spacing: 0.15em;
  color: var(--green);
}
.conclusion-stat {
  font-family: var(--font-neuebit);
  font-size: 56px;
  font-weight: bold;
  line-height: 1;
  color: var(--green);
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.conclusion-stat-unit {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
}
.conclusion-title {
  font-family: var(--font-sans);
  font-size: 22px;
  font-weight: 700;
  color: white;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}
.conclusion-body {
  font-size: 16px;
  line-height: 1.65;
  color: rgba(255,255,255,0.7);
  margin: 0;
}
.conclusion-body strong {
  color: #e5e5e5;
  font-weight: 700;
}
.conclusion-source {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--green-border2);
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.conclusions-takeaway {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 28px;
  border-left: 2px solid var(--green);
  background: rgba(0, 233, 154, 0.04);
}
.conclusions-takeaway strong { font-weight: 700; }

@media (max-width: 980px) {
  .conclusions-grid { grid-template-columns: 1fr; }
  .conclusion-stat { font-size: 44px; }
}


/* ════════════════════════════
   OUR ASSUMPTIONS
════════════════════════════ */
.assumptions-section {
  padding: 0 var(--col-pad) 32px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}
.assumptions-section h2 {
  font-family: var(--font-neuebit);
  font-size: 56px;
  font-weight: bold;
  color: white;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
}
.assumption-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 24px;
  flex: 1;
  min-height: 0;
}
.assumption-card {
  background: rgba(21,25,22,0.4);
  border: 1px solid var(--green-border2);
  padding: 56px 56px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}
.c-tag {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
}
.c-sub {
  font-size: 22px;
  font-weight: 600;
  color: white;
  line-height: 1.35;
  margin-bottom: 16px;
}
.c-text {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}

/* ════════════════════════════
   RESOURCES
════════════════════════════ */
.resources-section {
  padding: 72px var(--col-pad) 96px;
  display: flex;
  flex-direction: column;
  gap: 52px;
}
.resources-header { display: flex; flex-direction: column; gap: 8px; }
.resources-header h2 {
  font-family: var(--font-neuebit);
  font-size: 56px;
  font-weight: bold;
  color: white;
  line-height: 1;
  letter-spacing: -0.01em;
}
.resources-sub {
  font-size: 15px;
  color: var(--text-muted);
}

.res-group { display: flex; flex-direction: column; gap: 16px; }
.res-group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(0,233,154,0.6);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(50,205,115,0.15);
}

.res-grid { display: grid; gap: 12px; }
.res-grid-3 { grid-template-columns: repeat(3, 1fr); }

.res-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(21,25,22,0.5);
  border: 1px solid rgba(50,205,115,0.1);
  padding: 24px 22px 20px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, background 0.2s;
}
.res-card:hover {
  border-color: rgba(0,233,154,0.35);
  background: rgba(21,25,22,0.85);
}
.res-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.res-org {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.res-badges { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.res-badge {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
}
.res-badge-interactive { background: rgba(0,233,154,0.12);   color: var(--green); }
.res-badge-viz         { background: rgba(100,180,255,0.10); color: #7ec8e3; }
.res-badge-pdf         { background: rgba(255,180,80,0.10);  color: #f5a623; }
.res-badge-oa          { background: rgba(180,130,255,0.10); color: #c4a0f5; }

.res-title {
  font-size: 15px;
  font-weight: 700;
  color: white;
  line-height: 1.35;
}
.res-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  flex: 1;
}
.res-footer {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid rgba(50,205,115,0.08);
}
.res-link-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.04em;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.res-card:hover .res-link-label { opacity: 1; }


/* ════ Landing page layout & animations ════ */
html, body { height: 100%; }
    body { display: flex; flex-direction: column; }
    .hero { flex: 1; display: grid; align-content: center; }
    @keyframes fadeSlideUp {
      from { opacity: 0; transform: translateY(24px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    .hero-left { animation: fadeSlideUp 0.7s ease both; }
    .stat-card { opacity: 0; animation: fadeSlideUp 0.6s ease both; }
    .stat-card:nth-child(1) { animation-delay: 0.3s; }
    .stat-card:nth-child(2) { animation-delay: 0.5s; }
    .stat-card:nth-child(3) { animation-delay: 0.7s; }


/* ════ Purpose page overrides ════ */
.purpose-section p { font-size: 18px; }
    .box-body { font-size: 16px; }


/* ════ Inline Citations ════ */
.cite {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: rgba(0,233,154,0.15);
  border: 1px solid rgba(0,233,154,0.4);
  color: var(--green);
  font-size: 9px;
  font-weight: 700;
  font-family: 'Inter', system-ui, sans-serif;
  letter-spacing: 0;
  cursor: pointer;
  vertical-align: middle;
  margin-left: 4px;
  position: relative;
  transition: background 0.15s, border-color 0.15s;
  flex-shrink: 0;
}
.cite:hover { background: rgba(0,233,154,0.28); }

.cite-popover {
  position: fixed;
  z-index: 9000;
  max-width: 320px;
  background: #0f1a12;
  border: 1px solid rgba(0,233,154,0.35);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: rgba(255,255,255,0.75);
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  pointer-events: auto;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.15s, transform 0.15s;
}
.cite-popover.visible {
  opacity: 1;
  transform: translateY(0);
}
.cite-popover strong { color: #e5e5e5; display: block; margin-bottom: 4px; }
.cite-popover a { color: var(--green); text-decoration: none; }
.cite-popover a:hover { text-decoration: underline; }
.cite-popover .cite-close {
  float: right;
  cursor: pointer;
  color: rgba(255,255,255,0.3);
  font-size: 14px;
  line-height: 1;
  margin-left: 8px;
}
.cite-popover .cite-close:hover { color: white; }