/* =========================================================
   Global Warming Explorer — design system
   Built by Babatunde Ayoola Awoyemi / Techbase Consultant Services
   Signature: the "atmospheric readout" strip + isoline motifs,
   pulled from instrument readouts & contour maps — Babatunde's
   own background in atmospheric physics & solar radiation work.
   ========================================================= */

:root{
  /* --- color tokens --- */
  --paper:        #F5F7F2;
  --paper-raised: #FFFFFF;
  --ink:          #11201C;
  --ink-soft:     #45564E;
  --ink-faint:    #6E7D75;

  --teal-900: #0A4641;
  --teal-700: #0E5C56;
  --teal-500: #16847A;
  --teal-200: #CFE6E1;
  --teal-100: #E7F2EF;

  --amber-600: #D9691A;
  --amber-500: #EE8C3C;
  --amber-200: #FBDFC0;

  --coral-600: #C8432F;
  --coral-100: #F7E2DD;

  --line:      #CBD8CD;
  --line-soft: #E4ECE2;

  --shadow: 0 1px 2px rgba(17,32,28,.04), 0 8px 24px rgba(17,32,28,.06);
  --shadow-lg: 0 4px 10px rgba(17,32,28,.06), 0 24px 48px rgba(17,32,28,.10);

  --radius: 10px;
  --radius-sm: 6px;

  --maxw: 1180px;
}

/* --- reset --- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size:16.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; }
h1,h2,h3,h4{
  font-family:"Space Grotesk", "Plus Jakarta Sans", sans-serif;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
  color:var(--ink);
}
h1{ font-size:clamp(2.1rem, 4.4vw, 3.4rem); font-weight:600; }
h2{ font-size:clamp(1.5rem, 2.6vw, 2.05rem); font-weight:600; }
h3{ font-size:1.2rem; font-weight:700; }
p{ margin:0 0 1em; color:var(--ink-soft); }
.mono{ font-family:"JetBrains Mono", ui-monospace, monospace; }

/* respect reduced motion everywhere */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding:64px 0; }
.section--tight{ padding:40px 0; }
.section--alt{ background:var(--teal-100); }
.eyebrow{
  font-family:"JetBrains Mono", monospace;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.72rem;
  font-weight:600;
  color:var(--teal-700);
  display:inline-flex; align-items:center; gap:.5em;
  margin-bottom:.9em;
}
.eyebrow::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--amber-600); display:inline-block; }
.lede{ font-size:1.12rem; max-width:46em; }

/* --- buttons --- */
.btn{
  display:inline-flex; align-items:center; gap:.5em;
  padding:.78em 1.4em;
  border-radius:999px;
  font-weight:600;
  font-size:.97rem;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:active{ transform:translateY(1px); }
.btn-primary{ background:var(--teal-700); color:#fff; }
.btn-primary:hover{ background:var(--teal-900); box-shadow:var(--shadow); }
.btn-ghost{ background:transparent; border-color:var(--line); color:var(--ink); }
.btn-ghost:hover{ border-color:var(--teal-700); color:var(--teal-700); }
.btn-amber{ background:var(--amber-600); color:#fff; }
.btn-amber:hover{ background:#bb5912; }
.btn-sm{ padding:.5em 1em; font-size:.85rem; }

/* =========================================================
   NAV
   ========================================================= */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(245,247,242,.92);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.nav{
  max-width:var(--maxw); margin:0 auto; padding:0 24px;
  display:flex; align-items:center; justify-content:space-between;
  height:64px;
}
.brand{ display:flex; align-items:center; gap:.6em; font-weight:700; font-family:"Space Grotesk",sans-serif; font-size:1.05rem; }
.brand .mark{
  width:30px; height:30px; border-radius:8px;
  background:linear-gradient(135deg, var(--teal-700), var(--amber-500));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:.95rem; flex:none;
}
.brand small{ display:block; font-family:"Plus Jakarta Sans",sans-serif; font-weight:500; font-size:.66rem; color:var(--ink-faint); letter-spacing:.02em; }

.nav-desktop{ display:flex; align-items:center; gap:4px; }
.nav-link{
  position:relative;
  padding:.6em .85em;
  border-radius:8px;
  font-size:.92rem; font-weight:600;
  color:var(--ink-soft);
}
.nav-link:hover{ color:var(--teal-700); background:var(--teal-100); }
.nav-link.is-active{ color:var(--teal-700); }
.nav-group{ position:relative; }
.nav-pop{
  position:absolute; top:calc(100% + 8px); left:0;
  background:var(--paper-raised); border:1px solid var(--line-soft);
  border-radius:var(--radius); box-shadow:var(--shadow-lg);
  padding:8px; min-width:230px;
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .15s ease, transform .15s ease, visibility .15s;
}
.nav-group:hover .nav-pop, .nav-group:focus-within .nav-pop{
  opacity:1; visibility:visible; transform:translateY(0);
}
.nav-pop a{ display:block; padding:.6em .7em; border-radius:6px; font-size:.88rem; font-weight:600; color:var(--ink-soft); }
.nav-pop a:hover{ background:var(--teal-100); color:var(--teal-700); }
.nav-cta{ display:flex; align-items:center; gap:10px; }

.menu-btn{
  display:none; background:none; border:1.5px solid var(--line); border-radius:8px;
  width:42px; height:38px; cursor:pointer; align-items:center; justify-content:center; flex:none;
}
.menu-btn span, .menu-btn span::before, .menu-btn span::after{
  content:""; display:block; width:18px; height:2px; background:var(--ink); position:relative; transition:transform .2s ease, opacity .2s ease, top .2s ease;
}
.menu-btn span::before{ position:absolute; top:-6px; }
.menu-btn span::after{ position:absolute; top:6px; }
/* hamburger -> X when open */
.menu-btn.is-open span{ background:transparent; }
.menu-btn.is-open span::before{ top:0; transform:rotate(45deg); }
.menu-btn.is-open span::after{ top:0; transform:rotate(-45deg); }

/* dimmed backdrop behind the drawer */
.mobile-menu-backdrop{
  position:fixed; top:0; right:0; bottom:0; left:0; background:rgba(10,18,15,.45);
  z-index:58; opacity:0; visibility:hidden; transition:opacity .25s ease, visibility .25s ease;
}
.mobile-menu-backdrop.is-open{ opacity:1; visibility:visible; }

/* the drawer itself: slides in from the right, own internal scroll */
.mobile-menu{
  display:flex; flex-direction:column;
  position:fixed; top:0; right:0; bottom:0; width:min(86vw, 360px);
  background:var(--paper); z-index:60; box-shadow:-12px 0 32px rgba(10,18,15,.18);
  transform:translateX(100%); transition:transform .3s ease, visibility .3s ease;
  visibility:hidden;
}
.mobile-menu.is-open{ transform:translateX(0); visibility:visible; }
.mobile-menu-head{
  flex:none; display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px; border-bottom:1px solid var(--line-soft); background:var(--paper);
}
.mobile-menu-head span{ font-family:"Space Grotesk",sans-serif; font-weight:700; font-size:1rem; }
.mobile-menu-close{
  width:38px; height:38px; border-radius:8px; border:1.5px solid var(--line); background:none;
  font-size:1.1rem; line-height:1; cursor:pointer; flex:none;
}
.mobile-menu-body{ flex:1 1 auto; overflow-y:auto; -webkit-overflow-scrolling:touch; padding:8px 20px 40px; }
.mobile-menu-body > a{ display:block; padding:.85em 0; font-size:1.1rem; font-weight:800; border-bottom:1px solid var(--line-soft); }
.mm-section{ margin-top:18px; }
.mm-section h4{ font-family:"JetBrains Mono",monospace; font-size:.72rem; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-faint); margin-bottom:.5em; }
.mm-section a{ display:block; padding:.85em 0; font-size:1.05rem; font-weight:600; border-bottom:1px solid var(--line-soft); }

@media (max-width: 880px){
  .nav-desktop{ display:none; }
  .menu-btn{ display:flex; }
}
@media (min-width: 881px){
  .mobile-menu, .mobile-menu-backdrop{ display:none !important; }
}

/* =========================================================
   HERO + READOUT STRIP (signature element)
   ========================================================= */
.hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background:
    radial-gradient(900px 420px at 88% -10%, var(--teal-100), transparent 60%),
    var(--paper);
}
.hero .isolines{
  position:absolute; inset:0; z-index:0; opacity:.5; pointer-events:none;
}
.hero-inner{
  position:relative; z-index:1;
  max-width:var(--maxw); margin:0 auto; padding:56px 24px 0;
  display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;
}
.hero-inner.hero-inner--narrow{ grid-template-columns:1fr; }
.hero-media{
  border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-lg);
  aspect-ratio:4/3.1; position:relative; border:1px solid var(--line-soft);
}
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media .credit{
  position:absolute; bottom:0; right:0; background:rgba(17,32,28,.62); color:#fff;
  font-family:"JetBrains Mono",monospace; font-size:.62rem; padding:4px 8px; border-radius:6px 0 0 0;
}
.hero h1{ margin-bottom:.55em; }
.hero .lede{ margin-bottom:1.4em; }
.hero-ctas{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:8px; }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns:1fr; padding-top:36px; }
  .hero-media{ order:-1; aspect-ratio:16/10; }
}

/* readout strip */
.readout{
  position:relative; z-index:1;
  margin-top:40px;
  border-top:1px solid var(--line-soft);
  background:var(--ink);
  color:#EAF3EF;
}
.readout-inner{
  max-width:var(--maxw); margin:0 auto; padding:18px 24px;
  display:flex; gap:28px; flex-wrap:wrap;
}
.readout-cell{ min-width:140px; }
.readout-cell .ro-label{
  font-family:"JetBrains Mono",monospace; font-size:.66rem; text-transform:uppercase;
  letter-spacing:.1em; color:#9DB6AC; display:block; margin-bottom:4px;
}
.readout-cell .ro-value{
  font-family:"JetBrains Mono",monospace; font-weight:700; font-size:1.5rem; color:#fff;
}
.readout-cell .ro-value.tone-warm{ color:var(--amber-500); }
.readout-cell .ro-value.tone-cool{ color:#7FD9CB; }
.readout-cell .ro-value.tone-alert{ color:#F0897A; }
.readout-cell .ro-unit{ font-size:.85rem; color:#B8CABF; font-weight:500; margin-left:.15em; }

/* =========================================================
   CARDS / GRID
   ========================================================= */
.grid{ display:grid; gap:20px; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:920px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:620px){ .grid-3,.grid-4,.grid-2{ grid-template-columns:1fr; } }

.card{
  background:var(--paper-raised);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:24px;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lg); border-color:var(--teal-200); }
.card .ico{
  width:42px; height:42px; border-radius:9px; display:flex; align-items:center; justify-content:center;
  background:var(--teal-100); color:var(--teal-700); margin-bottom:14px; font-size:1.25rem;
}
.card h3{ margin-bottom:.35em; font-size:1.08rem; }
.card p{ font-size:.92rem; margin-bottom:.6em; }
.card .tag{
  font-family:"JetBrains Mono",monospace; font-size:.66rem; text-transform:uppercase; letter-spacing:.08em;
  color:var(--ink-faint);
}
.card-link{ font-weight:700; font-size:.88rem; color:var(--teal-700); display:inline-flex; align-items:center; gap:.3em; }
.card-link::after{ content:"→"; transition:transform .15s; }
.card:hover .card-link::after{ transform:translateX(3px); }

a.card{ display:block; }

/* explore section labels */
.explore-group{ margin-top:36px; }
.explore-group h4{
  font-family:"JetBrains Mono",monospace; text-transform:uppercase; letter-spacing:.1em;
  font-size:.74rem; color:var(--teal-700); margin-bottom:14px; display:flex; align-items:center; gap:.6em;
}
.explore-group h4::after{ content:""; flex:1; height:1px; background:var(--line); }

/* =========================================================
   CONTENT BLOCKS
   ========================================================= */
.prose{ max-width:42em; }
.prose p{ font-size:1.02rem; }
.prose ul, .prose ol{ color:var(--ink-soft); padding-left:1.25em; margin-bottom:1.2em; }
.prose li{ margin-bottom:.5em; }

.numbered-list{ list-style:none; padding:0; display:grid; gap:16px; counter-reset:n; }
.numbered-list li{
  position:relative; padding-left:54px; min-height:40px;
  background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:18px 20px 18px 64px;
}
.numbered-list li::before{
  counter-increment:n; content:counter(n);
  position:absolute; left:16px; top:18px;
  font-family:"JetBrains Mono",monospace; font-weight:700; font-size:1rem;
  width:30px; height:30px; border-radius:8px; background:var(--teal-700); color:#fff;
  display:flex; align-items:center; justify-content:center;
}
.numbered-list h3{ margin-bottom:.25em; font-size:1.02rem; }
.numbered-list p{ margin-bottom:0; font-size:.92rem; }

.callout{
  border-radius:var(--radius); padding:20px 22px; margin:24px 0;
  border:1px solid var(--line-soft);
}
.callout--try{ background:var(--teal-100); border-color:var(--teal-200); }
.callout--alert{ background:var(--coral-100); border-color:#E6B7AC; }
.callout--note{ background:var(--amber-200); border-color:#EFC495; }
.callout .callout-label{
  font-family:"JetBrains Mono",monospace; font-size:.7rem; text-transform:uppercase; letter-spacing:.1em;
  font-weight:700; display:block; margin-bottom:.5em;
}
.callout--try .callout-label{ color:var(--teal-900); }
.callout--alert .callout-label{ color:var(--coral-600); }
.callout--note .callout-label{ color:var(--amber-600); }
.callout p:last-child{ margin-bottom:0; }

.fact-strip{
  display:flex; gap:18px; flex-wrap:wrap; margin:28px 0;
}
.fact{
  flex:1; min-width:150px; background:var(--paper-raised); border:1px solid var(--line-soft);
  border-radius:var(--radius); padding:16px 18px;
}
.fact .fv{ font-family:"JetBrains Mono",monospace; font-weight:700; font-size:1.5rem; color:var(--teal-700); }
.fact .fl{ font-size:.8rem; color:var(--ink-faint); margin-top:2px; }

blockquote.pull{
  border-left:3px solid var(--amber-600); padding-left:1em; margin:1.6em 0;
  font-family:"Space Grotesk",sans-serif; font-size:1.2rem; color:var(--ink);
}

/* two col layout for content pages */
.layout-2col{ display:grid; grid-template-columns:1fr 300px; gap:48px; align-items:start; }
@media (max-width:880px){ .layout-2col{ grid-template-columns:1fr; } }
.side-card{
  background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:20px; position:sticky; top:84px;
}
.side-card h4{ font-family:"JetBrains Mono",monospace; font-size:.74rem; text-transform:uppercase; letter-spacing:.08em; color:var(--teal-700); margin-bottom:.8em; }
.side-card ul{ list-style:none; display:grid; gap:8px; }
.side-card a{ font-size:.88rem; font-weight:600; color:var(--ink-soft); }
.side-card a:hover{ color:var(--teal-700); }

/* topic prev/next */
.topic-pager{
  display:flex; justify-content:space-between; gap:16px; margin-top:48px; padding-top:28px; border-top:1px solid var(--line-soft);
}
.pager-link{
  flex:1; padding:16px 18px; border:1px solid var(--line-soft); border-radius:var(--radius); background:var(--paper-raised);
}
.pager-link:hover{ border-color:var(--teal-500); }
.pager-link .pl-dir{ font-family:"JetBrains Mono",monospace; font-size:.68rem; text-transform:uppercase; color:var(--ink-faint); letter-spacing:.08em; }
.pager-link .pl-title{ font-weight:700; margin-top:4px; }
.pager-link.next{ text-align:right; }

/* =========================================================
   FORM / INTERACTIVE ELEMENTS (calculator, checklist, quiz)
   ========================================================= */
.tool-panel{
  background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius);
  padding:28px; box-shadow:var(--shadow);
}
.field{ margin-bottom:20px; }
.field label{ display:flex; justify-content:space-between; font-weight:700; font-size:.92rem; margin-bottom:.5em; }
.field .field-val{ font-family:"JetBrains Mono",monospace; color:var(--teal-700); }
input[type=range]{
  width:100%; height:6px; border-radius:999px; background:var(--line-soft); accent-color:var(--teal-700); cursor:pointer;
}
select, input[type=number]{
  width:100%; padding:.7em .8em; border-radius:8px; border:1.5px solid var(--line); background:#fff; font-size:.95rem; font-family:inherit;
}
.radio-row{ display:flex; gap:10px; flex-wrap:wrap; }
.radio-row label{
  display:flex; align-items:center; gap:.4em; font-weight:600; font-size:.85rem;
  border:1.5px solid var(--line); border-radius:999px; padding:.5em 1em; cursor:pointer; transition:.15s;
}
.radio-row input{ accent-color:var(--teal-700); }
.radio-row label:has(input:checked){ border-color:var(--teal-700); background:var(--teal-100); color:var(--teal-900); }

.result-box{
  margin-top:24px; padding:24px; border-radius:var(--radius); background:var(--ink); color:#fff; text-align:center;
}
.result-box .rb-value{ font-family:"JetBrains Mono",monospace; font-size:2.6rem; font-weight:700; }
.result-box .rb-label{ color:#B8CABF; font-size:.85rem; margin-top:4px; }
.result-bar{ height:10px; border-radius:999px; background:#22352F; margin:18px 0 10px; overflow:hidden; }
.result-bar > span{ display:block; height:100%; background:linear-gradient(90deg, var(--teal-500), var(--amber-500)); border-radius:999px; transition:width .4s ease; }

.checklist{ list-style:none; display:grid; gap:10px; }
.checklist li{
  display:flex; align-items:flex-start; gap:12px; background:var(--paper-raised); border:1px solid var(--line-soft);
  border-radius:var(--radius); padding:14px 16px; cursor:pointer;
}
.checklist li.checked{ border-color:var(--teal-500); background:var(--teal-100); }
.checklist input{ margin-top:3px; width:18px; height:18px; accent-color:var(--teal-700); }
.checklist .ct-title{ font-weight:700; font-size:.95rem; }
.checklist .ct-desc{ font-size:.85rem; color:var(--ink-faint); margin-top:2px; }
.impact-meter{ display:flex; align-items:center; gap:16px; margin:18px 0 30px; flex-wrap:wrap; }
.impact-meter .im-count{ font-family:"JetBrains Mono",monospace; font-size:2.2rem; font-weight:700; color:var(--teal-700); }

.quiz-card{ background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius); padding:30px; box-shadow:var(--shadow); }
.quiz-progress{ height:6px; background:var(--line-soft); border-radius:999px; margin-bottom:24px; overflow:hidden; }
.quiz-progress > span{ display:block; height:100%; background:var(--teal-700); border-radius:999px; transition:width .3s; }
.quiz-options{ display:grid; gap:10px; margin-top:20px; }
.quiz-opt{
  text-align:left; padding:14px 16px; border:1.5px solid var(--line); border-radius:var(--radius);
  background:#fff; font-weight:600; font-size:.96rem; cursor:pointer; font-family:inherit; color:var(--ink);
  transition:.15s;
}
.quiz-opt:hover{ border-color:var(--teal-500); }
.quiz-opt.correct{ border-color:var(--teal-700); background:var(--teal-100); }
.quiz-opt.wrong{ border-color:var(--coral-600); background:var(--coral-100); }
.quiz-explain{ margin-top:16px; padding:14px 16px; border-radius:var(--radius); background:var(--paper); font-size:.9rem; display:none; }
.quiz-explain.show{ display:block; }
.quiz-foot{ display:flex; justify-content:space-between; align-items:center; margin-top:22px; }

/* glossary */
.glossary-grid{ display:grid; gap:14px; }
.gloss-item{ background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius); padding:18px 20px; }
.gloss-item dt{ font-family:"Space Grotesk",sans-serif; font-weight:700; font-size:1.02rem; color:var(--teal-900); }
.gloss-item dd{ margin:.35em 0 0; color:var(--ink-soft); font-size:.92rem; }
.az-jump{ display:flex; flex-wrap:wrap; gap:6px; margin-bottom:28px; }
.az-jump a{
  width:30px; height:30px; display:flex; align-items:center; justify-content:center; border-radius:6px;
  background:var(--paper-raised); border:1px solid var(--line-soft); font-family:"JetBrains Mono",monospace; font-size:.8rem; font-weight:700;
}
.az-jump a:hover{ background:var(--teal-100); color:var(--teal-700); }

/* charts page */
.chart-card{ background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius); padding:24px; margin-bottom:28px; box-shadow:var(--shadow); }
.chart-card h3{ margin-bottom:.2em; }
.chart-meta{ font-size:.82rem; color:var(--ink-faint); margin-bottom:18px; }
.chart-wrap{ position:relative; height:320px; }
.source-note{ font-size:.78rem; color:var(--ink-faint); margin-top:10px; }

/* about page */
.avatar-frame{
  width:100%; aspect-ratio:1; border-radius:var(--radius); overflow:hidden; border:1px solid var(--line-soft);
  background:linear-gradient(135deg, var(--teal-700), var(--teal-900)); display:flex; align-items:center; justify-content:center;
  box-shadow:var(--shadow-lg);
}
.avatar-frame img{ width:100%; height:100%; object-fit:cover; }
.avatar-frame .initials{ font-family:"Space Grotesk",sans-serif; font-size:4.5rem; color:#fff; font-weight:700; }
.credential-list{ list-style:none; display:grid; gap:10px; margin:20px 0; }
.credential-list li{ display:flex; gap:10px; font-size:.92rem; color:var(--ink-soft); }
.credential-list .dot{ width:6px; height:6px; border-radius:50%; background:var(--amber-600); margin-top:.5em; flex:none; }
.project-strip{ display:grid; gap:14px; margin-top:18px; }
.project-strip a{
  display:flex; justify-content:space-between; align-items:center; padding:14px 16px;
  border:1px solid var(--line-soft); border-radius:var(--radius); background:var(--paper-raised); font-weight:700; font-size:.92rem;
}
.project-strip a:hover{ border-color:var(--teal-500); color:var(--teal-700); }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{ background:var(--ink); color:#C9D8D0; margin-top:40px; }
.footer-inner{ max-width:var(--maxw); margin:0 auto; padding:56px 24px 28px; display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; }
@media (max-width:780px){ .footer-inner{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-inner{ grid-template-columns:1fr; } }
.site-footer h5{ font-family:"JetBrains Mono",monospace; text-transform:uppercase; font-size:.72rem; letter-spacing:.1em; color:#8FAA9F; margin-bottom:1em; }
.site-footer ul{ list-style:none; display:grid; gap:9px; }
.site-footer a{ font-size:.88rem; color:#D7E4DD; }
.site-footer a:hover{ color:#fff; }
.site-footer p{ color:#9FB6AC; font-size:.88rem; }
.footer-brand{ display:flex; align-items:center; gap:.6em; font-family:"Space Grotesk",sans-serif; font-weight:700; color:#fff; font-size:1.05rem; margin-bottom:12px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1); max-width:var(--maxw); margin:0 auto; padding:18px 24px 28px;
  display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; font-size:.78rem; color:#7E988D;
}
.footer-bottom a{ color:#A9C2B8; }

/* scroll reveal */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .5s ease, transform .5s ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* skip link / focus */
.skip-link{ position:absolute; left:-999px; top:0; background:var(--teal-700); color:#fff; padding:.6em 1em; border-radius:6px; z-index:100; }
.skip-link:focus{ left:12px; top:12px; }
a:focus-visible, button:focus-visible, input:focus-visible, .quiz-opt:focus-visible{
  outline:3px solid var(--amber-500); outline-offset:2px;
}

/* small util */
.center{ text-align:center; }
.muted{ color:var(--ink-faint); }
.mt-0{ margin-top:0; }
.section-head{ max-width:46em; margin-bottom:36px; }
.print-btn{ display:inline-flex; }
@media print{
  .site-header, .site-footer, .menu-btn, .hero-ctas, .print-btn{ display:none !important; }
}

/* =========================================================
   COURSE / LESSONS / TEACHER / CERTIFICATE (added module)
   ========================================================= */
.objective-box{
  background:var(--teal-900); color:#fff; border-radius:var(--radius);
  padding:20px 22px; margin:24px 0; display:flex; gap:14px; align-items:flex-start;
}
.objective-box .ob-ico{ font-size:1.4rem; flex:none; }
.objective-box .ob-label{ font-family:"JetBrains Mono",monospace; font-size:.68rem; text-transform:uppercase; letter-spacing:.1em; color:#9DB6AC; display:block; margin-bottom:.3em; }
.objective-box p{ color:#EAF3EF; margin:0; font-weight:600; }

.lesson-badge{
  display:inline-flex; align-items:center; gap:8px; font-family:"JetBrains Mono",monospace;
  font-size:.72rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  background:var(--amber-200); color:var(--amber-600); padding:.4em .8em; border-radius:999px; margin-bottom:1em;
}

.worksheet{
  background:var(--paper-raised); border:2px dashed var(--line); border-radius:var(--radius);
  padding:28px; margin:30px 0;
}
.worksheet h3{ display:flex; align-items:center; gap:.4em; }
.worksheet .ws-q{ margin-bottom:22px; }
.worksheet .ws-q:last-child{ margin-bottom:0; }
.worksheet .ws-q label{ display:block; font-weight:700; font-size:.95rem; margin-bottom:.5em; }
.worksheet .ws-line{ border-bottom:1.5px solid var(--line); height:1.8em; margin-bottom:6px; }
.worksheet .ws-blank{ display:inline-block; border-bottom:1.5px solid var(--ink); min-width:90px; height:1.1em; }
.worksheet table{ width:100%; border-collapse:collapse; font-size:.9rem; }
.worksheet th, .worksheet td{ border:1px solid var(--line); padding:8px 10px; text-align:left; }
.worksheet th{ background:var(--teal-100); font-family:"JetBrains Mono",monospace; font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; }

.complete-box{
  display:flex; align-items:center; gap:16px; flex-wrap:wrap;
  background:var(--teal-100); border:1px solid var(--teal-200); border-radius:var(--radius);
  padding:18px 20px; margin:30px 0;
}
#complete-status{ font-size:.85rem; color:var(--teal-900); font-weight:600; }

.course-progress-wrap{ margin:20px 0 36px; }
.course-progress-top{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:8px; font-size:.9rem; font-weight:700; }
.course-progress-track{ height:14px; border-radius:999px; background:var(--line-soft); overflow:hidden; }
.course-progress-track > span{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--teal-500),var(--amber-500)); border-radius:999px; transition:width .4s ease; }

.lesson-list{ list-style:none; display:grid; gap:14px; }
.lesson-card{
  display:flex; align-items:center; gap:18px; background:var(--paper-raised); border:1px solid var(--line-soft);
  border-radius:var(--radius); padding:18px 20px; transition:.18s;
}
.lesson-card:hover{ border-color:var(--teal-500); transform:translateY(-2px); box-shadow:var(--shadow); }
.lesson-card.is-complete{ border-color:var(--teal-500); background:var(--teal-100); }
.lesson-card .ln{
  width:42px; height:42px; border-radius:10px; background:var(--teal-700); color:#fff; flex:none;
  display:flex; align-items:center; justify-content:center; font-family:"JetBrains Mono",monospace; font-weight:700; font-size:1.1rem;
}
.lesson-card .lc-title{ font-weight:700; font-size:1.02rem; }
.lesson-card .lc-obj{ font-size:.85rem; color:var(--ink-faint); margin-top:2px; }
.lesson-card .lesson-check{
  margin-left:auto; flex:none; font-family:"JetBrains Mono",monospace; font-size:.78rem; font-weight:700;
  color:var(--ink-faint); white-space:nowrap;
}
.lesson-card.is-complete .lesson-check{ color:var(--teal-700); }

.lesson-pager{ display:flex; justify-content:space-between; gap:16px; margin-top:40px; padding-top:24px; border-top:1px solid var(--line-soft); }

.teacher-table{ width:100%; border-collapse:collapse; margin:20px 0 36px; font-size:.92rem; }
.teacher-table th, .teacher-table td{ border:1px solid var(--line-soft); padding:12px 14px; text-align:left; vertical-align:top; }
.teacher-table th{ background:var(--teal-700); color:#fff; font-family:"JetBrains Mono",monospace; font-size:.72rem; text-transform:uppercase; letter-spacing:.06em; }
.teacher-table tr:nth-child(even){ background:var(--paper); }

.cert-panel{ text-align:center; }
.cert-canvas-wrap{ max-width:760px; margin:0 auto; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-lg); border:1px solid var(--line-soft); }
#cert-canvas{ width:100%; display:block; background:#fff; }
.cert-form{ max-width:420px; margin:0 auto 28px; }

@media print{
  .worksheet{ border-style:solid; }
  .complete-box, .course-progress-wrap, .lesson-pager{ display:none !important; }
}
@media (max-width:620px){
  .lesson-card{ flex-wrap:wrap; }
  .lesson-check{ margin-left:0; }
}

/* check-in page */
.checkin-progress-box{ background:var(--paper-raised); border:1px solid var(--line-soft); border-radius:var(--radius); padding:20px; margin:20px 0; }
.checkin-progress-box ul{ list-style:none; display:grid; gap:6px; margin-top:10px; }
.checkin-progress-box li{ font-size:.9rem; color:var(--ink-soft); padding:4px 0; border-bottom:1px solid var(--line-soft); }
.checkin-progress-box li:last-child{ border-bottom:none; }
#checkin-setup-warning{ display:none; }
#checkin-result{ display:none; }
.field textarea{
  width:100%; padding:.7em .8em; border-radius:8px; border:1.5px solid var(--line); background:#fff;
  font-size:.95rem; font-family:inherit; resize:vertical; min-height:80px;
}

/* =========================================================
   WEATHER WIDGET (Today's Weather, on Data Explorer)
   ========================================================= */
.weather-controls{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:18px; }
.weather-controls input[type=text]{
  flex:1; min-width:160px; padding:.65em .9em; border-radius:999px; border:1.5px solid var(--line);
  font-size:.9rem; font-family:inherit;
}
.weather-card{
  background:linear-gradient(135deg, var(--teal-900), var(--teal-700)); color:#fff;
  border-radius:var(--radius); padding:26px; display:flex; flex-direction:column; gap:6px;
}
.weather-top{ display:flex; justify-content:space-between; align-items:flex-start; }
.weather-loc{ font-family:"Space Grotesk",sans-serif; font-weight:700; font-size:1.15rem; display:block; }
.weather-updated{ font-size:.74rem; color:#B8CABF; display:block; margin-top:2px; }
.weather-emoji{ font-size:2.4rem; line-height:1; }
.weather-temp{ font-family:"JetBrains Mono",monospace; font-size:3rem; font-weight:700; margin-top:6px; }
.weather-desc{ font-size:1rem; color:#D7E4DD; margin-bottom:6px; }
.weather-stats{ display:flex; gap:24px; margin-top:8px; border-top:1px solid rgba(255,255,255,.15); padding-top:14px; }
.weather-stat .ws-l{ font-family:"JetBrains Mono",monospace; font-size:.68rem; text-transform:uppercase; letter-spacing:.08em; color:#9DB6AC; display:block; }
.weather-stat .ws-v{ font-weight:700; font-size:1rem; margin-top:2px; }
.weather-loading, .weather-error{ font-size:.9rem; color:var(--ink-faint); padding:20px; text-align:center; }
.weather-error{ color:var(--coral-600); }