:root {
    --navy: #002147;
    --navy-deep: #001432;
    --navy-mid: #1a3a5f;
    --copper: #B87333;
    --copper-bright: #d18a47;
    --copper-soft: #c8965b;
    --cream: #f6f1e8;
    --paper: #faf7f1;
    --ink: #1a1d24;
    --muted: #5a6175;
    --rule: rgba(0, 33, 71, 0.12);
    --rule-strong: rgba(0, 33, 71, 0.28);
    --serif: 'Fraunces', 'Garamond', 'Georgia', serif;
    --sans: 'Inter', system-ui, sans-serif;
    --mono: 'JetBrains Mono', 'SF Mono', monospace;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: var(--sans);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.55;
    font-size: 17px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  ::selection { background: var(--copper); color: var(--paper); }

  a { color: inherit; text-decoration: none; }

  /* ────────────────  TOP RULE & NAV  ──────────────── */
  .top-rule {
    height: 4px;
    background: var(--navy);
    position: relative;
  }
  .top-rule::after {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 38%;
    background: var(--copper);
  }

  nav.primary {
    position: sticky;
    top: 0;
    background: rgba(250, 247, 241, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--rule);
    z-index: 100;
  }
  .nav-inner {
    max-width: 1340px;
    margin: 0 auto;
    padding: 18px 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
  }
  .brand {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--navy);
    display: flex;
    align-items: baseline;
    gap: 10px;
  }
  .brand-mark {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--copper);
    border-radius: 50%;
    transform: translateY(-2px);
  }
  .brand em {
    font-style: italic;
    font-weight: 400;
  }
  .brand-sub {
    font-family: var(--sans);
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted);
    margin-left: 6px;
    padding-left: 14px;
    border-left: 1px solid var(--rule-strong);
  }

  .nav-links {
    display: flex;
    gap: 36px;
    align-items: center;
  }
  .nav-links a {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--navy);
    letter-spacing: 0.01em;
    position: relative;
    padding: 4px 0;
    transition: color 0.2s;
  }
  .nav-links a:hover { color: var(--copper); }
  .nav-links a::after {
    content: '';
    position: absolute;
    left: 0; right: 100%;
    bottom: -2px;
    height: 1px;
    background: var(--copper);
    transition: right 0.3s;
  }
  .nav-links a:hover::after { right: 0; }

  .nav-cta {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--navy);
    padding: 9px 16px;
    border: 1px solid var(--navy);
    border-radius: 2px;
    transition: all 0.2s;
  }
  .nav-cta:hover {
    background: var(--navy);
    color: var(--paper);
  }

  /* ────────────────  HERO  ──────────────── */
  .hero {
    max-width: 1340px;
    margin: 0 auto;
    padding: 96px 48px 80px;
    position: relative;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 80px;
    align-items: start;
  }

  .meta-stamp {
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--mono);
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--muted);
    margin-bottom: 36px;
  }
  .meta-stamp .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--copper);
    box-shadow: 0 0 0 4px rgba(184, 115, 51, 0.18);
    animation: pulse 2.4s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(184, 115, 51, 0.18); }
    50% { box-shadow: 0 0 0 8px rgba(184, 115, 51, 0.04); }
  }
  .meta-stamp .sep {
    width: 24px;
    height: 1px;
    background: var(--rule-strong);
  }

  h1.headline {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(40px, 5.8vw, 78px);
    line-height: 1.02;
    letter-spacing: -0.025em;
    color: var(--navy);
    margin-bottom: 36px;
  }
  h1.headline em {
    font-style: italic;
    font-weight: 400;
    color: var(--copper);
  }
  h1.headline .underline-word {
    position: relative;
    display: inline-block;
  }
  h1.headline .underline-word::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    bottom: 0.08em;
    height: 3px;
    background: var(--copper);
    opacity: 0.85;
  }

  .lede {
    font-family: var(--serif);
    font-size: 21px;
    line-height: 1.55;
    color: var(--ink);
    max-width: 640px;
    font-weight: 400;
  }
  .lede strong { font-weight: 600; color: var(--navy); }

  .hero-cta-row {
    margin-top: 44px;
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--sans);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 14px 22px;
    border-radius: 2px;
    transition: all 0.25s;
    cursor: pointer;
  }
  .btn-primary {
    background: var(--navy);
    color: var(--paper);
    border: 1px solid var(--navy);
  }
  .btn-primary:hover {
    background: var(--navy-deep);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(0, 33, 71, 0.18);
  }
  .btn-secondary {
    background: transparent;
    color: var(--navy);
    border: 1px solid var(--rule-strong);
  }
  .btn-secondary:hover {
    border-color: var(--copper);
    color: var(--copper);
  }
  .btn .arrow {
    transition: transform 0.25s;
  }
  .btn:hover .arrow { transform: translateX(4px); }

  /* ── Right side: pull quote / data card ── */
  .hero-card {
    position: relative;
    background: var(--navy);
    color: var(--paper);
    padding: 48px 44px;
    border-radius: 3px;
    overflow: hidden;
  }
  .hero-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 64px;
    height: 4px;
    background: var(--copper);
  }
  .hero-card-label {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--copper-bright);
    margin-bottom: 28px;
  }
  .stat-group {
    display: flex;
    flex-direction: column;
    gap: 28px;
  }
  .stat {
    border-bottom: 1px solid rgba(246, 241, 232, 0.12);
    padding-bottom: 22px;
  }
  .stat:last-child { border-bottom: none; padding-bottom: 0; }
  .stat-num {
    font-family: var(--serif);
    font-size: 52px;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--paper);
  }
  .stat-num em {
    font-style: italic;
    color: var(--copper-bright);
  }
  .stat-label {
    font-family: var(--sans);
    font-size: 13.5px;
    color: rgba(246, 241, 232, 0.78);
    margin-top: 8px;
    max-width: 320px;
    line-height: 1.45;
  }
  .stat-source {
    font-family: var(--mono);
    font-size: 10.5px;
    color: rgba(246, 241, 232, 0.45);
    margin-top: 6px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* ────────────────  ANNOUNCEMENT BAR  ──────────────── */
  .announce {
    background: var(--cream);
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
    padding: 22px 0;
  }
  .announce-inner {
    max-width: 1340px;
    margin: 0 auto;
    padding: 0 48px;
    display: flex;
    align-items: center;
    gap: 28px;
    flex-wrap: wrap;
  }
  .announce-tag {
    font-family: var(--mono);
    font-size: 10.5px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--copper);
    padding: 5px 10px;
    border: 1px solid var(--copper);
    border-radius: 2px;
    background: var(--paper);
  }
  .announce-text {
    font-size: 14.5px;
    color: var(--ink);
    flex: 1;
  }
  .announce-text strong { color: var(--navy); }
  .announce-link {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--navy);
    text-decoration: underline;
    text-underline-offset: 4px;
    text-decoration-color: var(--copper);
  }

  /* ────────────────  SECTION SHELL  ──────────────── */
  section.shell {
    max-width: 1340px;
    margin: 0 auto;
    padding: 110px 48px;
  }

  .section-head {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 56px;
    margin-bottom: 72px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--rule);
  }
  .section-label {
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--copper);
    padding-top: 14px;
    position: relative;
  }
  .section-label::before {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 36px;
    height: 2px;
    background: var(--copper);
  }
  .section-title {
    font-family: var(--serif);
    font-size: clamp(34px, 4vw, 52px);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: var(--navy);
    max-width: 880px;
  }
  .section-title em { font-style: italic; color: var(--copper); }

  /* ────────────────  THE PROBLEM (DATA SECTION)  ──────────────── */
  .problem-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 32px;
  }
  .problem-card {
    grid-column: span 4;
    background: var(--paper);
    border: 1px solid var(--rule);
    padding: 40px 36px;
    position: relative;
    transition: all 0.3s;
  }
  .problem-card:hover {
    border-color: var(--copper);
    transform: translateY(-3px);
    box-shadow: 0 14px 40px rgba(0, 33, 71, 0.08);
  }
  .problem-num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.14em;
    margin-bottom: 24px;
  }
  .problem-big {
    font-family: var(--serif);
    font-size: 64px;
    line-height: 1;
    font-weight: 400;
    color: var(--navy);
    letter-spacing: -0.03em;
    margin-bottom: 14px;
  }
  .problem-big em {
    font-style: italic;
    color: var(--copper);
  }
  .problem-unit {
    font-family: var(--sans);
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 22px;
    letter-spacing: 0.02em;
  }
  .problem-body {
    font-size: 15px;
    line-height: 1.6;
    color: var(--ink);
  }
  .problem-source {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--muted);
    margin-top: 20px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  /* ────────────────  FOUR PILLARS  ──────────────── */
  .pillars-section {
    background: var(--navy);
    color: var(--paper);
    margin-top: 40px;
  }
  .pillars-section .section-head { border-bottom-color: rgba(246, 241, 232, 0.14); }
  .pillars-section .section-title { color: var(--paper); }
  .pillars-section .section-title em { color: var(--copper-bright); }
  .pillars-section .section-label { color: var(--copper-bright); }
  .pillars-section .section-label::before { background: var(--copper-bright); }

  .pillar-intro {
    font-family: var(--serif);
    font-size: 19px;
    line-height: 1.6;
    color: rgba(246, 241, 232, 0.88);
    max-width: 720px;
    margin-bottom: 56px;
  }

  .pillars {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: rgba(246, 241, 232, 0.12);
    border: 1px solid rgba(246, 241, 232, 0.12);
  }
  .pillar {
    background: var(--navy);
    padding: 44px 32px;
    transition: background 0.3s;
    cursor: default;
    position: relative;
  }
  .pillar:hover { background: var(--navy-mid); }
  .pillar-num {
    font-family: var(--serif);
    font-style: italic;
    font-size: 14px;
    color: var(--copper-bright);
    margin-bottom: 20px;
    letter-spacing: 0.04em;
  }
  .pillar-name {
    font-family: var(--serif);
    font-size: 26px;
    font-weight: 500;
    line-height: 1.15;
    margin-bottom: 18px;
    letter-spacing: -0.01em;
    min-height: 90px;
  }
  .pillar-tag {
    font-family: var(--mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--copper-bright);
    padding: 4px 8px;
    border: 1px solid var(--copper-bright);
    display: inline-block;
    margin-bottom: 20px;
  }
  .pillar-body {
    font-size: 14.5px;
    line-height: 1.6;
    color: rgba(246, 241, 232, 0.78);
  }

  /* ────────────────  PRINCIPAL / BIO  ──────────────── */
  .principal-section { background: var(--paper); }
  .principal-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
  }
  .principal-portrait {
    background: var(--cream);
    border: 1px solid var(--rule);
    padding: 56px 44px;
    position: relative;
    overflow: hidden;
  }
  .principal-portrait::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 80px;
    height: 4px;
    background: var(--copper);
  }
  .principal-name {
    font-family: var(--serif);
    font-size: 42px;
    line-height: 1.05;
    font-weight: 400;
    color: var(--navy);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
  }
  .principal-title {
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--copper);
    margin-bottom: 36px;
  }
  .principal-creds {
    list-style: none;
  }
  .principal-creds li {
    padding: 16px 0;
    border-bottom: 1px solid var(--rule);
    font-size: 14.5px;
    color: var(--ink);
    line-height: 1.5;
  }
  .principal-creds li:last-child { border-bottom: none; }
  .principal-creds li strong {
    display: block;
    font-family: var(--serif);
    font-size: 16px;
    font-weight: 500;
    color: var(--navy);
    margin-bottom: 4px;
  }
  .principal-creds li .yr {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.06em;
  }

  .principal-narrative h3 {
    font-family: var(--serif);
    font-size: 28px;
    line-height: 1.2;
    font-weight: 500;
    color: var(--navy);
    margin-bottom: 24px;
    letter-spacing: -0.01em;
  }
  .principal-narrative p {
    font-family: var(--serif);
    font-size: 18px;
    line-height: 1.65;
    color: var(--ink);
    margin-bottom: 20px;
  }
  .principal-narrative p strong {
    color: var(--navy);
    font-weight: 600;
  }
  .principal-narrative .award-card {
    background: var(--navy);
    color: var(--paper);
    padding: 28px 32px;
    margin-top: 36px;
    border-left: 3px solid var(--copper);
  }
  .principal-narrative .award-card .award-label {
    font-family: var(--mono);
    font-size: 10.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--copper-bright);
    margin-bottom: 8px;
  }
  .principal-narrative .award-card .award-name {
    font-family: var(--serif);
    font-size: 19px;
    font-weight: 500;
    line-height: 1.35;
  }
  .principal-narrative .award-card .award-yr {
    font-family: var(--mono);
    font-size: 12px;
    color: rgba(246, 241, 232, 0.7);
    margin-top: 8px;
  }

  /* ────────────────  TDI / SERVICES  ──────────────── */
  .services-section { background: var(--cream); }

  .services-intro {
    font-family: var(--serif);
    font-size: 20px;
    line-height: 1.6;
    color: var(--ink);
    max-width: 760px;
    margin-bottom: 64px;
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border: 1px solid var(--rule);
    background: var(--paper);
  }
  .service {
    padding: 48px 44px;
    position: relative;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  .service:nth-child(2n) { border-right: none; }
  .service:nth-last-child(-n+2) { border-bottom: none; }

  .service-num {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--copper);
    letter-spacing: 0.16em;
    margin-bottom: 24px;
  }
  .service h3 {
    font-family: var(--serif);
    font-size: 28px;
    line-height: 1.18;
    font-weight: 500;
    color: var(--navy);
    margin-bottom: 18px;
    letter-spacing: -0.01em;
  }
  .service p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink);
    margin-bottom: 22px;
  }
  .service-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: auto;
  }
  .service-tag {
    font-family: var(--mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--navy);
    padding: 5px 10px;
    border: 1px solid var(--rule-strong);
    background: var(--cream);
  }

  /* ────────────────  TDI USER GROUPS  ──────────────── */
  .tdi-section { background: var(--paper); padding-top: 60px; }
  .user-groups {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .user-group {
    border-top: 2px solid var(--navy);
    padding-top: 22px;
  }
  .user-group h4 {
    font-family: var(--serif);
    font-size: 18px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 10px;
    line-height: 1.3;
  }
  .user-group p {
    font-size: 13.5px;
    line-height: 1.55;
    color: var(--muted);
  }
  .user-group:nth-child(1) { border-top-color: var(--navy); }
  .user-group:nth-child(2) { border-top-color: var(--copper); }
  .user-group:nth-child(3) { border-top-color: var(--navy); }
  .user-group:nth-child(4) { border-top-color: var(--copper); }

  /* ────────────────  PACKAGE / PROPOSALS  ──────────────── */
  .package-section { background: var(--cream); }

  .package-list {
    display: flex;
    flex-direction: column;
  }
  .package-item {
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: 36px;
    align-items: center;
    padding: 32px 0;
    border-top: 1px solid var(--rule);
    transition: padding 0.3s;
    cursor: default;
  }
  .package-item:last-child { border-bottom: 1px solid var(--rule); }
  .package-item:hover {
    padding-left: 12px;
    padding-right: 12px;
    background: var(--paper);
  }
  .pkg-num {
    font-family: var(--serif);
    font-style: italic;
    font-size: 36px;
    color: var(--copper);
    line-height: 1;
    font-weight: 400;
  }
  .pkg-title {
    font-family: var(--serif);
    font-size: 22px;
    font-weight: 500;
    color: var(--navy);
    line-height: 1.25;
    letter-spacing: -0.01em;
    margin-bottom: 6px;
  }
  .pkg-desc {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.55;
    max-width: 720px;
  }
  .pkg-meta {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    text-align: right;
    white-space: nowrap;
  }
  .pkg-pages {
    font-family: var(--serif);
    font-style: italic;
    font-size: 14px;
    color: var(--navy);
    margin-top: 4px;
  }

  /* ────────────────  CONTACT  ──────────────── */
  .contact-section {
    background: var(--navy);
    color: var(--paper);
    padding: 110px 48px;
  }
  .contact-inner {
    max-width: 1340px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: end;
  }
  .contact-headline {
    font-family: var(--serif);
    font-size: clamp(40px, 5vw, 68px);
    line-height: 1.05;
    font-weight: 400;
    letter-spacing: -0.025em;
    color: var(--paper);
  }
  .contact-headline em {
    font-style: italic;
    color: var(--copper-bright);
  }
  .contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
  }
  .contact-row {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 24px;
    align-items: baseline;
    padding-bottom: 22px;
    border-bottom: 1px solid rgba(246, 241, 232, 0.18);
  }
  .contact-label {
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--copper-bright);
  }
  .contact-value {
    font-family: var(--serif);
    font-size: 22px;
    color: var(--paper);
  }
  .contact-value a {
    border-bottom: 1px solid rgba(184, 115, 51, 0.5);
    padding-bottom: 2px;
    transition: border-color 0.2s;
  }
  .contact-value a:hover { border-bottom-color: var(--copper-bright); }

  /* ────────────────  FOOTER  ──────────────── */
  footer {
    background: var(--navy-deep);
    color: rgba(246, 241, 232, 0.7);
    padding: 48px;
    border-top: 1px solid rgba(246, 241, 232, 0.08);
  }
  .footer-inner {
    max-width: 1340px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.08em;
  }
  .footer-inner a:hover { color: var(--copper-bright); }
  .footer-mark {
    color: var(--copper-bright);
    font-family: var(--serif);
    font-style: italic;
    font-size: 16px;
    letter-spacing: 0;
    text-transform: none;
  }

  /* ────────────────  ENTRANCE ANIMATIONS  ──────────────── */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .fade-in.in-view {
    opacity: 1;
    transform: translateY(0);
  }

  /* ────────────────  RESPONSIVE  ──────────────── */
  @media (max-width: 980px) {
    .nav-inner { padding: 16px 24px; }
    .nav-links { display: none; }
    .nav-cta { display: inline-flex; }
    .brand-sub { display: none; }
    .hero { padding: 56px 24px 56px; }
    .hero-grid { grid-template-columns: 1fr; gap: 48px; }
    .section-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 48px; }
    section.shell { padding: 72px 24px; }
    .problem-card { grid-column: span 12; }
    .pillars { grid-template-columns: 1fr; }
    .principal-grid { grid-template-columns: 1fr; gap: 48px; }
    .services-grid { grid-template-columns: 1fr; }
    .service:nth-child(odd) { border-right: none; }
    .service { border-bottom: 1px solid var(--rule); }
    .user-groups { grid-template-columns: 1fr 1fr; }
    .package-item { grid-template-columns: 60px 1fr; }
    .pkg-meta { grid-column: 2; text-align: left; padding-top: 8px; }
    .contact-section { padding: 72px 24px; }
    .contact-inner { grid-template-columns: 1fr; gap: 48px; align-items: start; }
    .contact-row { grid-template-columns: 1fr; gap: 8px; }
    .announce-inner { padding: 0 24px; }
    footer { padding: 32px 24px; }
  }
  @media (max-width: 560px) {
    .user-groups { grid-template-columns: 1fr; }
    h1.headline { font-size: 44px; }
    .principal-name { font-size: 32px; }
    .contact-headline { font-size: 36px; }
    .stat-num { font-size: 42px; }
    .problem-big { font-size: 48px; }
  }
  /* ────────────────  PROGRAMS: CAST / AISIT  ──────────────── */
  .program-section { background: var(--cream); }
  .shell-in { max-width: 1340px; margin: 0 auto; padding: 110px 48px; }
  .program-lede {
    font-family: var(--serif);
    font-size: 20px;
    line-height: 1.6;
    color: var(--ink);
    max-width: 760px;
    margin-bottom: 56px;
  }
  .program-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
  }
  .program-card { background: var(--paper); padding: 40px 30px; }
  .pc-num {
    font-family: var(--serif);
    font-style: italic;
    font-size: 14px;
    color: var(--copper);
    margin-bottom: 18px;
    letter-spacing: 0.04em;
  }
  .pc-tag {
    font-family: var(--mono);
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--navy);
    padding: 4px 8px;
    border: 1px solid var(--rule-strong);
    background: var(--cream);
    display: inline-block;
    margin-bottom: 18px;
  }
  .program-card h3 {
    font-family: var(--serif);
    font-size: 24px;
    font-weight: 500;
    line-height: 1.15;
    color: var(--navy);
    margin-bottom: 14px;
    letter-spacing: -0.01em;
  }
  .program-card p { font-size: 14.5px; line-height: 1.6; color: var(--ink); }
  .program-facts {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin: 56px 0;
    padding: 36px 0;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }
  .program-facts.two { grid-template-columns: repeat(2, 1fr); max-width: 860px; }
  .fact-num {
    font-family: var(--serif);
    font-size: 46px;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--navy);
  }
  .fact-num em { font-style: italic; color: var(--copper); }
  .fact-label { font-size: 13.5px; line-height: 1.45; color: var(--muted); margin-top: 10px; }
  .program-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 48px 64px; }
  .program-note h4 {
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--copper);
    margin-bottom: 14px;
  }
  .program-note p { font-size: 15.5px; line-height: 1.65; color: var(--ink); }
  .program-source {
    font-family: var(--mono);
    font-size: 10.5px;
    color: var(--muted);
    margin-top: 14px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }
  .program-status {
    font-family: var(--mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--muted);
    margin-top: 56px;
    padding-top: 22px;
    border-top: 1px solid var(--rule);
  }
  .pillars-section .program-facts { border-color: rgba(246, 241, 232, 0.14); margin-top: 0; }
  .pillars-section .fact-num { color: var(--paper); }
  .pillars-section .fact-num em { color: var(--copper-bright); }
  .pillars-section .fact-label { color: rgba(246, 241, 232, 0.78); }
  .pillars-section .program-source { color: rgba(246, 241, 232, 0.55); }
  .pillars-section .program-notes { margin-top: 56px; }
  .pillars-section .program-note h4 { color: var(--copper-bright); }
  .pillars-section .program-note p { color: rgba(246, 241, 232, 0.84); }
  .pillars-section .program-status { color: rgba(246, 241, 232, 0.6); border-top-color: rgba(246, 241, 232, 0.14); }
  .pillar-name.sm { font-size: 21px; min-height: 100px; }
  .program-note ol { padding-left: 1.25em; font-size: 15.5px; line-height: 1.65; color: var(--ink); }
  .program-note ol li { margin-bottom: 4px; }
  .pillars-section .program-note ol { color: rgba(246, 241, 232, 0.84); }
  .pillars-section .program-note ol li::marker { color: var(--copper-bright); }
  .service.service-wide { grid-column: 1 / -1; border-right: none; }
  .service.service-wide p { max-width: 820px; }
  .services-grid .service:nth-last-child(2) { border-bottom: 1px solid var(--rule); }
  .nav-links a { white-space: nowrap; }
  @media (max-width: 1420px) {
    .nav-links { gap: 22px; }
    .brand-sub { display: none; }
  }
  @media (max-width: 1100px) {
    .nav-links { gap: 15px; }
    .nav-links a { font-size: 13px; }
    .nav-cta { padding: 8px 12px; }
  }
  @media (max-width: 1060px) {
    .nav-links { display: none; }
  }
  @media (max-width: 980px) {
    .shell-in { padding: 72px 24px; }
    .program-cards { grid-template-columns: 1fr; }
    .program-facts { grid-template-columns: 1fr 1fr; }
    .program-notes { grid-template-columns: 1fr; }
    .pillar-name.sm { min-height: 0; }
  }
  @media (max-width: 560px) {
    .program-facts, .program-facts.two { grid-template-columns: 1fr; }
  }
  .pkg-dl {
    display: inline-block;
    margin-top: 12px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--copper);
    border: 1px solid var(--copper);
    padding: 6px 12px;
    text-decoration: none;
    transition: all 0.2s;
  }
  .pkg-dl:hover { background: var(--copper); color: var(--paper); }
  /* nav fit with eight links */
  .nav-links { gap: 20px; }
  @media (max-width: 1560px) { .brand-sub { display: none; } }
  @media (max-width: 1300px) {
    .nav-links { gap: 16px; }
    .nav-links a { font-size: 13px; }
    .nav-cta { padding: 8px 12px; }
  }
  @media (max-width: 1120px) { .nav-links { display: none; } }

  /* ────────────────  MULTI-PAGE NAV  ──────────────── */
  .nav-links a.active { color: var(--copper); }
  .nav-links a.active::after { right: 0; }
  .nav-toggle { display: none; font-family: var(--mono); font-size: 12px; color: var(--navy); background: none; border: 1px solid var(--rule-strong); padding: 8px 12px; border-radius: 2px; cursor: pointer; margin-left: auto; margin-right: 10px; }
  @media (max-width: 1120px) {
    .nav-toggle { display: inline-flex; }
    .nav-inner { position: relative; }
  }
  @media (max-width: 560px) {
    .nav-toggle { padding: 6px 9px; margin-right: 6px; }
    .nav-cta { display: none; }
    .brand { white-space: nowrap; font-size: 18px; }
  }
  @media (max-width: 360px) {
    .brand { font-size: 16px; }
    .nav-links.open { display: flex !important; flex-direction: column; align-items: flex-start; gap: 14px; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); padding: 18px 24px 22px; border-bottom: 1px solid var(--rule); box-shadow: 0 10px 24px rgba(0,33,71,0.08); z-index: 60; }
    .nav-links.open a { font-size: 15px; }
  }
  /* ────────────────  HOME INDEX  ──────────────── */
  .home-index { background: var(--cream); }
  .home-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
  a.home-card { display: block; background: var(--paper); padding: 34px 28px 30px; text-decoration: none; color: inherit; transition: background 0.2s; }
  a.home-card:hover { background: #fff; }
  .home-card .pc-num { margin-bottom: 14px; }
  .home-card h3 { font-family: var(--serif); font-size: 24px; font-weight: 500; line-height: 1.15; color: var(--navy); margin-bottom: 12px; }
  .home-card p { font-size: 14.5px; line-height: 1.6; color: var(--ink); margin-bottom: 16px; }
  .home-card .go { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--copper); }
  @media (max-width: 980px) { .home-cards { grid-template-columns: 1fr 1fr; } }
  @media (max-width: 560px) { .home-cards { grid-template-columns: 1fr; } }