/* ============================================================
   TUEPAC — Network Design System (tuepac.org parity)
   Red, white & blue only. Institutional, calm, balanced.
   ============================================================ */

:root{
  /* ---- Core brand ---- */
  --blue:        #0A3161;  /* Old Glory Blue — primary / authority */
  --red:         #B31942;  /* Old Glory Red — accent / action     */
  --white:       #FFFFFF;

  /* ---- Functional shades (stay in family) ---- */
  --blue-deep:   #071E3D;
  --blue-mid:    #14467F;
  --red-soft:    #9A1537;
  --ink:         #1A1F2B;
  --mist:        #C9D2DE;
  --off:         #F5F6F8;
  --paper:       #FBFCFD;
  --green-grade: #1F7A4D;  /* positive marks only (à la scorecard) */

  /* ---- Translucents ---- */
  --ink-60:   rgba(26,31,43,0.62);
  --ink-45:   rgba(26,31,43,0.45);
  --mute:     rgba(26,31,43,0.62);
  --faint:    rgba(26,31,43,0.45);
  --white-72: rgba(255,255,255,0.72);
  --white-50: rgba(255,255,255,0.50);
  --white-16: rgba(255,255,255,0.16);
  --white-08: rgba(255,255,255,0.08);
  --line:     rgba(10,49,97,0.13);
  --line-2:   rgba(10,49,97,0.07);
  --line-strong: rgba(10,49,97,0.30);
  --hairline: rgba(10,49,97,0.12);

  /* ---- Type ---- */
  --serif: Georgia, "Times New Roman", "Liberation Serif", serif;
  --sans:  "Public Sans", "Helvetica Neue", Helvetica, system-ui, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --fs-display: clamp(2.85rem, 5.2vw, 4.5rem);
  --fs-h1:      clamp(2.2rem, 3.6vw, 3rem);
  --fs-h2:      clamp(1.7rem, 2.6vw, 2.25rem);
  --fs-h3:      1.5rem;
  --fs-h4:      1.25rem;
  --fs-body:    1.0625rem;
  --fs-body-lg: 1.1875rem;
  --fs-small:   0.9375rem;
  --fs-overline:0.78rem;

  --lh-tight: 1.08;
  --lh-snug:  1.22;
  --lh-body:  1.62;

  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:24px;
  --s-6:32px; --s-7:48px; --s-8:64px; --s-9:96px; --s-10:120px;

  --r-sm:3px; --r:6px; --r-lg:10px; --r-pill:999px;

  --shadow-1: 0 1px 2px rgba(7,30,61,0.06), 0 1px 3px rgba(7,30,61,0.05);
  --shadow-2: 0 4px 12px rgba(7,30,61,0.08), 0 2px 4px rgba(7,30,61,0.05);
  --shadow-3: 0 18px 48px rgba(7,30,61,0.16), 0 6px 16px rgba(7,30,61,0.08);

  --container: 1240px;
  --container-narrow: 880px;

  /* Unity Keystone mark, white-on-blue */
  --keystone: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Cpath d='M22 80 V52 A28 28 0 0 1 78 52 V80' fill='none' stroke='%23fff' stroke-width='8.5' stroke-linecap='round'/%3E%3Cpath d='M37 80 V55 A13 13 0 0 1 63 55 V80' fill='none' stroke='%23fff' stroke-width='7' stroke-linecap='round' opacity='0.5'/%3E%3Crect x='45.5' y='12' width='9' height='20' rx='2' fill='%23B31942'/%3E%3Crect x='16' y='82' width='68' height='9' rx='3' fill='%23fff'/%3E%3C/svg%3E");
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility; scroll-behavior:smooth; }
body{
  margin:0; font-family:var(--sans); font-size:var(--fs-body);
  line-height:var(--lh-body); color:var(--ink); background:var(--white);
}
h1,h2,h3,h4{ font-family:var(--serif); font-weight:700; line-height:var(--lh-snug); margin:0; letter-spacing:-0.01em; }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
::selection{ background:rgba(179,25,66,0.15); }

/* ---------- Layout primitives ---------- */
.wrap{ max-width:var(--container); margin-inline:auto; padding-inline:clamp(20px,4vw,48px); }
.wrap-narrow{ max-width:var(--container-narrow); margin-inline:auto; padding-inline:clamp(20px,4vw,48px); }
.section{ padding-block:clamp(56px,8vw,108px); }
.section--tight{ padding-block:clamp(40px,5vw,68px); }
.bg-off{ background:var(--off); }
.bg-blue{ background:var(--blue); color:var(--white); }
.bg-deep{ background:var(--blue-deep); color:var(--white); }
.bg-black{ background:var(--blue-deep); color:var(--white); }
.divider{ height:1px; background:var(--line); border:0; }

/* ---------- Ribbon removed (kept as no-op so markup is harmless) ---------- */
.ribbon, .ribbon--thin, .ribbon-v{ display:none; }

/* ---------- Eyebrow / overline ---------- */
.eyebrow{
  font-family:var(--sans); font-size:var(--fs-overline); font-weight:700;
  letter-spacing:0.16em; text-transform:uppercase; color:var(--blue);
  display:inline-flex; align-items:center; gap:12px;
}
.eyebrow::before{ content:""; width:26px; height:2px; background:var(--red); display:inline-block; }
.eyebrow.plain::before{ display:none; }
.eyebrow.on-dark{ color:var(--white-72); }
.eyebrow.center{ justify-content:center; }

/* ---------- Section heading block ---------- */
.heading{ max-width:62ch; }
.heading.center{ margin-inline:auto; text-align:center; }
.heading h2{ font-size:var(--fs-h2); color:var(--blue); margin-top:18px; }
.bg-blue .heading h2, .bg-deep .heading h2{ color:var(--white); }
.heading .lead{ margin-top:16px; font-size:var(--fs-body-lg); color:var(--ink-60); max-width:54ch; }
.bg-blue .heading .lead, .bg-deep .heading .lead{ color:var(--white-72); }
.center{ text-align:center; }

/* ---------- Buttons ---------- */
.btn{
  font-family:var(--sans); font-size:var(--fs-small); font-weight:700; letter-spacing:0.01em;
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:14px 26px; border-radius:var(--r); border:1.5px solid transparent; cursor:pointer;
  transition:background .18s, color .18s, border-color .18s, transform .18s;
}
.btn svg{ width:16px; height:16px; }
.btn--action{ background:var(--red); color:#fff; border-color:var(--red); }
.btn--action:hover{ background:var(--red-soft); border-color:var(--red-soft); }
.btn--ink{ background:var(--blue); color:#fff; border-color:var(--blue); }       /* primary = blue */
.btn--ink:hover{ background:var(--blue-mid); border-color:var(--blue-mid); }
.btn--primary{ background:var(--blue); color:#fff; border-color:var(--blue); }
.btn--primary:hover{ background:var(--blue-mid); border-color:var(--blue-mid); }
.btn--outline{ background:transparent; color:var(--blue); border-color:var(--mist); }
.btn--outline:hover{ border-color:var(--blue); }
.btn--ghost-light{ background:transparent; color:#fff; border-color:var(--white-50); }
.btn--ghost-light:hover{ background:var(--white-08); border-color:#fff; }
.btn--lg{ padding:17px 32px; font-size:var(--fs-body); }
.btn--block{ width:100%; }
.btn--sm{ padding:10px 18px; font-size:var(--fs-small); }

/* ---------- Top navigation ---------- */
.nav{ position:sticky; top:0; z-index:60; background:rgba(255,255,255,0.92);
  backdrop-filter:saturate(140%) blur(10px); border-bottom:1px solid var(--hairline); }
.nav__inner{ display:flex; align-items:center; justify-content:space-between; height:74px; gap:24px; }
.nav__links{ display:flex; align-items:center; gap:24px; }
.nav__links a{ font-size:var(--fs-small); font-weight:600; color:var(--ink); position:relative; white-space:nowrap; }
.nav__links a:hover{ color:var(--blue); }
.nav__links a.is-active{ color:var(--blue); }
.nav__links a.is-active::after{ content:""; position:absolute; left:0; right:0; bottom:-27px; height:2px; background:var(--red); }
.nav__cta{ display:flex; align-items:center; gap:14px; }
.nav__signin{ font-size:var(--fs-small); font-weight:600; color:var(--blue); white-space:nowrap; }
@media (max-width:1040px){ .nav__links{ display:none; } }

/* ---------- Wordmark (Unity Keystone) ---------- */
.wordmark{ display:inline-flex; align-items:center; gap:13px; }
.wordmark__mark{ width:38px; height:38px; flex:none; border-radius:9px; overflow:hidden;
  background:var(--blue) var(--keystone) center / 27px no-repeat; }
.wordmark__mark i{ display:none; }
.wordmark__text{ display:flex; flex-direction:column; line-height:1; }
.wordmark__name{ font-family:var(--serif); font-weight:700; font-size:1.42rem; letter-spacing:0.02em; color:var(--blue); }
.wordmark__full{ font-family:var(--sans); font-size:0.6rem; font-weight:600; letter-spacing:0.13em;
  text-transform:uppercase; color:var(--ink-60); margin-top:4px; }
.on-dark .wordmark__name{ color:#fff; }
.on-dark .wordmark__full{ color:var(--white-50); }
.mark-red,.mark-gold,.mark-black,.mark-green{ background:transparent; }

/* ---------- Badges ---------- */
.badge{ display:inline-flex; align-items:center; gap:6px; font-family:var(--sans);
  font-size:0.66rem; font-weight:700; letter-spacing:0.12em; text-transform:uppercase;
  padding:4px 9px; border-radius:var(--r-pill); line-height:1.5; white-space:nowrap; }
.badge--licensed{ background:rgba(10,49,97,0.07); color:var(--blue); box-shadow:inset 0 0 0 1px rgba(10,49,97,0.18); }
.badge--original{ background:var(--blue); color:#fff; }
.badge--source{ background:var(--off); color:var(--ink-60); box-shadow:inset 0 0 0 1px var(--mist); }
.badge--sponsor{ background:rgba(179,25,66,0.10); color:var(--red); box-shadow:inset 0 0 0 1px rgba(179,25,66,0.28); }
.badge--ai{ background:rgba(179,25,66,0.08); color:var(--red); box-shadow:inset 0 0 0 1px rgba(179,25,66,0.24); }
.badge--breaking{ background:var(--red); color:#fff; }
.badge .dot{ width:6px; height:6px; border-radius:50%; background:currentColor; }
.badge--breaking .dot{ background:#fff; animation:blink 1.3s ease-in-out infinite; }
@keyframes blink{ 50%{ opacity:.35; } }

/* ---------- Publisher chip ---------- */
.pub{ display:inline-flex; align-items:center; gap:7px; font-size:var(--fs-small); color:var(--ink); }
.pub__logo{ width:18px; height:18px; border-radius:3px; flex:none; display:flex; align-items:center;
  justify-content:center; font-family:var(--serif); font-weight:700; font-size:10px; color:#fff; }
.pub__logo.red{ background:var(--red); } .pub__logo.green{ background:var(--blue); }
.pub__logo.gold{ background:var(--blue-mid); } .pub__logo.ink{ background:var(--blue-deep); }
.pub__name{ font-weight:600; }

/* ---------- Photo placeholder (neutral slate duotone) ---------- */
.ph{ position:relative; background:#2A3242; background-image:linear-gradient(150deg,#3A4456,#20262f);
  display:flex; align-items:center; justify-content:center; color:var(--white-50); overflow:hidden; }
.ph[data-label]::after{ content:attr(data-label); position:absolute; bottom:12px; left:14px;
  font-family:var(--sans); font-size:0.66rem; font-weight:600; letter-spacing:0.1em; text-transform:uppercase; color:var(--white-50); }
.ph svg{ width:34px; height:34px; color:var(--white-16); }
.ph--warm{ background:#2f3340; background-image:linear-gradient(150deg,#3c4252,#23272f); }
.ph--green{ background:#243140; background-image:linear-gradient(150deg,#2f3e4e,#1c242d); }

/* ---------- News cards ---------- */
.card-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.card-grid--2{ grid-template-columns:repeat(2,1fr); }
.ncard{ display:flex; flex-direction:column; border:1px solid var(--mist); border-radius:var(--r-lg);
  overflow:hidden; background:var(--white); transition:box-shadow .2s, transform .2s; }
.ncard:hover{ box-shadow:var(--shadow-2); transform:translateY(-2px); }
.ncard__media{ aspect-ratio:16/10; position:relative; }
.ncard__body{ padding:22px 24px 26px; display:flex; flex-direction:column; gap:10px; flex:1; }
.ncard__kicker{ font-family:var(--sans); font-size:var(--fs-overline); letter-spacing:0.13em; text-transform:uppercase; font-weight:700; color:var(--red); }
.ncard__title{ font-family:var(--serif); font-size:1.22rem; font-weight:700; color:var(--blue); line-height:1.3; letter-spacing:-0.005em; }
.ncard__dek{ font-size:var(--fs-small); color:var(--ink-60); }
.ncard__meta{ margin-top:auto; padding-top:12px; display:flex; align-items:center; justify-content:space-between;
  gap:10px; border-top:1px solid var(--line-2); font-size:0.82rem; color:var(--ink-45); }
@media (max-width:900px){ .card-grid{ grid-template-columns:1fr; } .card-grid--2{ grid-template-columns:1fr; } }

/* ---------- Footer ---------- */
.footer{ background:var(--blue-deep); color:#fff; }
.footer__top{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px; padding-block:clamp(52px,7vw,76px); }
.footer__intro p{ margin-top:18px; color:var(--white-50); font-size:var(--fs-small); max-width:34ch; }
.footer__col h5{ font-family:var(--sans); font-size:var(--fs-overline); letter-spacing:0.13em; text-transform:uppercase;
  color:var(--white-50); font-weight:700; margin:0 0 16px; }
.footer__col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:11px; }
.footer__col a{ font-size:var(--fs-small); color:var(--white-72); }
.footer__col a:hover{ color:#fff; }
.footer__bottom{ border-top:1px solid var(--white-16); padding-block:24px; display:flex; flex-wrap:wrap;
  gap:14px 26px; align-items:center; justify-content:space-between; }
.footer__legal{ font-size:0.78rem; color:var(--white-50); line-height:1.6; max-width:72ch; }
@media (max-width:860px){ .footer__top{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer__top{ grid-template-columns:1fr; } }