/* ============================================================
   GRADE THE BOARD — Design System
   Colors, typography, layout, components
   ============================================================ */

:root {
  /* Brand Colors */
  --blue-deep:   #0064B4;
  --blue-mid:    #2878B4;
  --blue-sky:    #8CC8F0;
  --blue-light:  #D6EEFB;
  --green:       #1a6b3c;
  --green-lt:    #d4efe0;
  --teal:        #3CA0DC;
  --teal-lt:     #e0f4fb;
  --red:         #b91c1c;
  --red-lt:      #fde8e8;

  /* Grade Colors */
  --grade-a:     #2ecc71;
  --grade-b:     #3498db;
  --grade-c:     #f39c12;
  --grade-d:     #e67e22;
  --grade-f:     #e74c3c;

  /* Neutrals */
  --black:       #0D0D0D;
  --gray-dark:   #2A2A2A;
  --gray-mid:    #717171;
  --gray-light:  #F0F4F8;
  --gray-border: #dde3ea;
  --white:       #FFFFFF;

  /* Type */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  /* Spacing */
  --section-pad:  80px 64px;
  --section-pad-sm: 56px 24px;
  --max-w:        1100px;
  --radius:       12px;
  --radius-sm:    8px;
  --radius-lg:    20px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── Typography ── */
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 10px;
  display: block;
}
.eyebrow-white { color: rgba(255,255,255,.65); }

/* ── Layout ── */
.container { max-width: var(--max-w); margin: 0 auto; }
.section { padding: var(--section-pad); }
.section-gray { background: var(--gray-light); }
.section-dark  { background: var(--black); }
.section-blue  { background: var(--blue-deep); }

/* ── Navigation ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-border);
  padding: 0 40px;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--blue-deep);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo-mark {
  width: 32px; height: 32px;
  background: var(--blue-deep);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 16px; font-weight: 900;
  color: var(--white);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px;
  color: var(--gray-mid);
  font-family: var(--font-body);
  transition: color .2s;
}
.nav-links a:hover { color: var(--blue-deep); }
.nav-links a.active { color: var(--blue-deep); font-weight: 600; }
.nav-cta {
  background: var(--blue-deep);
  color: var(--white) !important;
  padding: 9px 20px;
  border-radius: 100px;
  font-size: 13px !important;
  font-family: var(--font-mono) !important;
  letter-spacing: .04em;
  transition: background .2s;
}
.nav-cta:hover { background: var(--blue-mid) !important; color: var(--white) !important; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--black); border-radius: 2px;
  transition: .3s;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all .2s;
  text-decoration: none;
}
.btn-primary {
  background: var(--blue-deep);
  color: var(--white);
}
.btn-primary:hover { background: var(--blue-mid); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,100,180,.3); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn-outline:hover { border-color: rgba(255,255,255,.8); background: rgba(255,255,255,.1); }
.btn-white {
  background: var(--white);
  color: var(--blue-deep);
}
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,.15); }

/* ── Grade Badges ── */
.grade-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--white);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.grade-badge-lg  { width: 120px; height: 120px; font-size: 72px; border-radius: var(--radius-lg); }
.grade-badge-md  { width: 64px;  height: 64px;  font-size: 34px; }
.grade-badge-sm  { width: 40px;  height: 40px;  font-size: 22px; }
.grade-badge-xs  { width: 28px;  height: 28px;  font-size: 14px; border-radius: 4px; }
.grade-a { background: var(--grade-a); }
.grade-b { background: var(--grade-b); }
.grade-c { background: var(--grade-c); }
.grade-d { background: var(--grade-d); }
.grade-f { background: var(--grade-f); }
.grade-na { background: var(--gray-mid); font-size: 18px; }

/* ── Tags / Badges ── */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
}
.tag-red   { background: var(--red-lt);   color: var(--red); }
.tag-green { background: var(--green-lt); color: var(--green); }
.tag-teal  { background: var(--teal-lt);  color: var(--teal); }
.tag-blue  { background: var(--blue-light); color: var(--blue-deep); }
.tag-gray  { background: var(--gray-light); color: var(--gray-mid); }

/* ── Cards ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  overflow: hidden;
}

/* ── Progress Bars ── */
.bar-track { background: var(--gray-light); border-radius: 100px; height: 8px; overflow: hidden; }
.bar-fill  { height: 100%; border-radius: 100px; }

/* ── Form / Email Capture ── */
.email-form {
  display: flex;
  gap: 10px;
  max-width: 480px;
  flex-wrap: wrap;
}
.email-input {
  flex: 1;
  min-width: 220px;
  padding: 13px 18px;
  border: 2px solid var(--gray-border);
  border-radius: 100px;
  font-size: 15px;
  font-family: var(--font-body);
  color: var(--black);
  outline: none;
  transition: border .2s;
  background: var(--white);
}
.email-input:focus { border-color: var(--blue-deep); }
.email-input::placeholder { color: var(--gray-mid); }
.form-success {
  display: none;
  padding: 14px 20px;
  background: var(--green-lt);
  color: var(--green);
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.5;
}

/* ── Dividers ── */
.divider { border: none; border-top: 1px solid var(--gray-border); }
.divider-dark { border-top-color: rgba(255,255,255,.12); }

/* ── Stat Blocks ── */
.stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-top: 6px;
}

/* ── Footer ── */
footer {
  background: var(--black);
  padding: 56px 64px 36px;
  color: rgba(255,255,255,.5);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}
.footer-mission {
  font-size: 14px;
  max-width: 320px;
  line-height: 1.65;
  color: rgba(255,255,255,.55);
}
.footer-links h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 14px;
}
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ── Methodology Pillars ── */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
}
.pillar-top {
  padding: 28px 24px;
  color: var(--white);
}
.pillar-pct {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 4px;
}
.pillar-name {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  opacity: .8;
}
.pillar-body {
  background: var(--white);
  padding: 20px 24px;
  font-size: 14px;
  color: var(--gray-dark);
  line-height: 1.7;
}
.pillar-blue .pillar-top  { background: var(--blue-deep); }
.pillar-green .pillar-top { background: var(--green); }
.pillar-teal .pillar-top  { background: var(--teal); }

/* ── Accordion / FAQ ── */
.faq-item {
  border-bottom: 1px solid var(--gray-border);
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 0;
  font-size: 16px;
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--black);
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-question:hover { color: var(--blue-deep); }
.faq-icon {
  font-size: 22px;
  color: var(--blue-deep);
  flex-shrink: 0;
  transition: transform .3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding-bottom: 20px;
  font-size: 15px;
  color: var(--gray-dark);
  line-height: 1.75;
}
.faq-item.open .faq-answer { display: block; }

/* ── Scorecards ── */
.scorecard-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-border);
}
.scorecard-row:last-child { border-bottom: none; }
.scorecard-dim { flex: 1; min-width: 100px; }
.scorecard-dim-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 3px;
}
.scorecard-dim-name { font-size: 15px; font-weight: 600; }
.scorecard-note { font-size: 13px; color: var(--gray-mid); min-width: 160px; }

/* ── Trustee Cards ── */
.trustee-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.trustee-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.07);
}
.trustee-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
}
.trustee-body { padding: 0 20px 18px; }
.trustee-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px solid var(--gray-light);
  font-size: 13px;
}
.trustee-row:last-child { border-bottom: none; }
.trustee-row-label { color: var(--gray-mid); }
.trustee-row-val { font-weight: 600; }
.trustee-finding {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 1.6;
}

/* ── Charts ── */
.chart-bar-group { display: flex; flex-direction: column; gap: 10px; }
.chart-bar-item { display: flex; align-items: center; gap: 12px; }
.chart-bar-label { font-size: 13px; min-width: 120px; color: var(--gray-dark); text-align: right; }
.chart-bar-track { flex: 1; background: var(--gray-light); border-radius: 100px; height: 28px; overflow: hidden; position: relative; }
.chart-bar-fill  { height: 100%; border-radius: 100px; display: flex; align-items: center; padding-left: 12px; font-family: var(--font-mono); font-size: 12px; color: var(--white); }
.chart-bar-val   { font-size: 13px; min-width: 52px; font-family: var(--font-mono); color: var(--gray-mid); }

/* ── Callout Box ── */
.callout {
  border-radius: var(--radius);
  padding: 24px 28px;
}
.callout-warning { background: #FEF3CD; border-left: 4px solid var(--grade-c); }
.callout-alert   { background: var(--red-lt); border-left: 4px solid var(--red); }
.callout-info    { background: var(--teal-lt); border-left: 4px solid var(--teal); }
.callout-success { background: var(--green-lt); border-left: 4px solid var(--green); }

/* ── Responsive ── */
@media (max-width: 900px) {
  :root { --section-pad: var(--section-pad-sm); }
  nav { padding: 0 20px; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--gray-border); padding: 20px 24px; gap: 18px; }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }
  .pillar-grid { grid-template-columns: 1fr; }
  .trustee-grid { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }
  footer { padding: 40px 24px 24px; }
}
@media (max-width: 600px) {
  .stat-number { font-size: 36px; }
  .grade-badge-lg { width: 80px; height: 80px; font-size: 48px; }
  .email-form { flex-direction: column; }
  .email-input { min-width: unset; }
}