/* Teach It Better — September 2026 site-wide polish */
:root{--tib-bg:#f8f7f2;--tib-paper:#fbfaf6;--tib-green:#0f3d35;--tib-green2:#174f43;--tib-ink:#20302d;--tib-blue:#123844;--tib-line:#d9ddd7;--tib-soft:#66766f;--tib-gold:#c68a32;--tib-serif:'Lora',Georgia,'Times New Roman',serif;--tib-sans:'Hanken Grotesk',system-ui,-apple-system,sans-serif;}
html{scroll-padding-top:78px}
body.tib-polished{background:var(--tib-bg);}
/* Unified site chrome */
.tib-nav{position:sticky;top:0;z-index:100;background:rgba(251,250,246,.97);backdrop-filter:blur(10px);border-bottom:1px solid #e1e3de;color:var(--tib-ink);}
.tib-nav__inner{max-width:1220px;margin:auto;height:72px;padding:0 clamp(1rem,3vw,2.5rem);display:flex;align-items:center;gap:1.35rem;}
.tib-brand{font-family:var(--tib-serif);font-size:clamp(1.45rem,2.4vw,1.95rem);font-weight:700;color:#103741;text-decoration:none;white-space:nowrap;letter-spacing:-.035em;}
.tib-nav__links{margin-left:auto;display:flex;align-items:center;gap:clamp(.8rem,2vw,1.75rem);}
.tib-nav__links a{position:relative;font-family:var(--tib-serif);font-size:.87rem;text-decoration:none;color:#173440;white-space:nowrap;padding:.35rem 0;}
.tib-nav__links a:hover{color:#0d5a4b;}
.tib-nav__links a.is-active{font-weight:700;color:#0f3d35;}
.tib-nav__links a.is-active:after{content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;background:#0f3d35;border-radius:2px;}
.tib-menu-btn{display:none;margin-left:auto;border:1px solid #cfd6d0;background:#fff;color:#173440;border-radius:999px;font:600 .82rem var(--tib-sans);padding:.5rem .8rem;}
.tib-mobile-extra{display:none!important;}
@media(max-width:820px){
 .tib-nav__inner{height:auto;min-height:64px;flex-wrap:wrap;padding-top:.65rem;padding-bottom:.65rem;}
 .tib-brand{font-size:1.35rem}.tib-menu-btn{display:inline-flex;align-items:center;gap:.35rem}
 .tib-nav__links{display:none;width:100%;margin:0;padding:.55rem 0 .2rem;border-top:1px solid #e5e7e2;grid-template-columns:repeat(2,minmax(0,1fr));gap:.15rem .5rem;}
 .tib-nav.open .tib-nav__links{display:grid;}
 .tib-nav__links a{font-family:var(--tib-sans);font-size:.9rem;padding:.55rem .2rem;white-space:normal;}
 .tib-nav__links a.is-active:after{left:.2rem;right:auto;width:28px;bottom:.2rem;}
 .tib-mobile-extra{display:block!important;}
}
/* compact, consistent footer */
.tib-footer{background:linear-gradient(105deg,#0d312f,#082b2a 72%,#061f20);color:#cad6d1;padding:1.45rem 0 1.1rem;margin-top:0;font-family:var(--tib-sans);}
.tib-footer__inner{max-width:1220px;margin:auto;padding:0 clamp(1rem,3vw,2.5rem);}
.tib-footer__top{display:flex;align-items:center;gap:1rem 1.35rem;flex-wrap:wrap;}
.tib-footer__brand{font:700 1.45rem var(--tib-serif);color:#fff;text-decoration:none;letter-spacing:-.02em;}
.tib-footer__nav{display:flex;flex-wrap:wrap;gap:.55rem 1rem;}
.tib-footer__nav a,.tib-footer__social a,.tib-footer__bottom a{color:#cad6d1;text-decoration:none;font-size:.78rem;}
.tib-footer__nav a:hover,.tib-footer__social a:hover,.tib-footer__bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:.2rem;}
.tib-footer__social{margin-left:auto;display:flex;gap:.85rem;align-items:center;}
.tib-footer__social a{font-weight:700;}
.tib-footer__rule{border:0;border-top:1px solid rgba(222,236,229,.24);margin:1rem 0 .8rem;}
.tib-footer__bottom{display:flex;justify-content:space-between;gap:.8rem 1.5rem;flex-wrap:wrap;align-items:center;color:#91a69d;font-size:.73rem;}
.tib-footer__utility{display:flex;gap:.5rem 1rem;flex-wrap:wrap;}
.tib-footer__bottom a{color:#aebfb8;font-size:.73rem;}
@media(max-width:700px){.tib-footer__social{margin-left:0}.tib-footer__bottom{display:block}.tib-footer__utility{margin-top:.6rem}}
/* contextual links between major resources */
.tib-context{background:#f1f3ee;border-top:1px solid #dde2dc;border-bottom:1px solid #dde2dc;padding:1rem 0;}
.tib-context__inner{max-width:1120px;margin:auto;padding:0 clamp(1rem,4vw,2.5rem);display:flex;align-items:center;gap:.65rem 1rem;flex-wrap:wrap;}
.tib-context__label{font:700 .7rem var(--tib-sans);letter-spacing:.13em;text-transform:uppercase;color:#6d7e75;margin-right:.2rem;}
.tib-context a{font:600 .84rem var(--tib-sans);color:#174f43;text-decoration:none;border-bottom:1px solid rgba(23,79,67,.28);padding-bottom:.08rem;}
.tib-context a:hover{border-bottom-color:#174f43;}
/* source jump bar */
.source-jumps{max-width:1120px;margin:0 auto;padding:1rem clamp(1rem,4vw,2.5rem);display:flex;gap:.5rem;flex-wrap:wrap;background:#f8f7f2;border-bottom:1px solid #e0e3de;}
.source-jumps a{font:600 .78rem var(--tib-sans);color:#174f43;text-decoration:none;border:1px solid #cfd8d2;background:#fff;border-radius:999px;padding:.48rem .72rem;}
.source-jumps a:hover{background:#edf3ef;border-color:#9fb4a9;}
/* handbook mobile reading choice */
.mobile-reading-note{display:none;margin:.95rem 0 0;padding:.8rem .95rem;border-left:3px solid #6f8a78;background:#edf2eb;color:#41564d;font:500 .86rem/1.45 var(--tib-sans);}
.release-actions .btn.web-read{background:#2c4a3b!important;color:#f6f1e6!important;border-color:#2c4a3b!important;}
.release-actions .btn.pdf-print{background:transparent!important;color:#2c4a3b!important;border:1.5px solid #2c4a3b!important;}
@media(max-width:700px){
 .mobile-reading-note{display:block}.release-actions{display:grid!important;grid-template-columns:1fr!important;gap:.55rem!important}.release-actions .btn{text-align:center;width:100%;}
 .hb-head{padding-top:2.1rem!important;padding-bottom:2rem!important;}
 .hb-shell{display:block!important;}.toc{position:relative!important;top:auto!important;max-height:none!important;margin-bottom:1.25rem!important;}
}
/* handbook TOC active state */
.toc a.toc-current{color:#0f3d35!important;font-weight:700!important;border-left:3px solid #0f3d35;padding-left:.55rem!important;}
/* consistent subtle link treatment */
.tib-link-arrow{white-space:nowrap;}
/* homepage interactive phases */
a.phase{text-decoration:none;border-radius:12px;padding:.25rem .2rem;transition:background .15s,transform .15s;}
a.phase:hover{background:#f0f3ee;transform:translateY(-2px);}a.phase:focus-visible{outline:2px solid #174f43;outline-offset:3px;}
/* homepage card links */
.home-card a,.tib-link-arrow{font-weight:600;}
/* find/poster controls — stronger active and tap states without redesign */
.chip.on{box-shadow:0 0 0 2px rgba(255,255,255,.16),0 0 0 3px currentColor;}
.copy-btn{min-height:38px;}
.copy-btn.done:after{content:" ✓";}
@media(max-width:700px){.copy-btn{min-height:44px;padding-left:1rem!important;padding-right:1rem!important}.chip{min-height:40px}}
@media print{.tib-nav,.tib-footer,.tib-context,.source-jumps,.mobile-reading-note{display:none!important}}


/* September 19 final lock — handbook reader surface + framework video */
body.handbook-page{
  background:linear-gradient(180deg,#edf3ef 0,#f7f8f4 15rem,#ffffff 33rem,#ffffff 100%);
}
.handbook-page .hb-head{
  background:linear-gradient(180deg,rgba(237,243,239,.98),rgba(251,250,246,.94));
  border-bottom:1px solid #dfe5df;
}
.handbook-page .hb-shell{
  max-width:1160px;
  margin:2rem auto 3rem;
  padding:clamp(1.25rem,3.5vw,2.5rem);
  background:#fff;
  border:1px solid #e1e5df;
  border-radius:22px;
  box-shadow:0 18px 50px rgba(26,58,50,.07);
}
.handbook-page .toc{background:#fbfcf9;border-radius:14px;padding:1rem .9rem;}
@media(max-width:940px){
  .handbook-page .hb-shell{margin:1rem .75rem 2rem;padding:1rem;border-radius:16px;}
  .handbook-page .toc{padding:1rem 1.05rem;}
}
@media print{
  body.handbook-page,.handbook-page .hb-head,.handbook-page .hb-shell{background:#fff!important;box-shadow:none!important;border:0!important;}
  .handbook-page .hb-shell{margin:0!important;padding:0!important;max-width:none!important;}
}