:root{
  --ink:#0F1B2D;
  --ink-2:#1B3A5C;
  --ink-3:#2E4F76;
  --paper:#FAF6EE;
  --paper-2:#F2EBDC;
  --cream:#FFFBF2;
  --moss:#2F5D3F;
  --moss-2:#1F4530;
  --leaf:#56864A;
  --amber:#C8861D;
  --amber-2:#E2A93B;
  --terra:#B9542B;
  --rust:#8C3A1E;
  --sky:#3E7CB1;
  --line:#D9CFB8;
  --shadow:0 1px 2px rgba(15,27,45,.06),0 8px 24px -8px rgba(15,27,45,.18);
  --shadow-lg:0 4px 8px rgba(15,27,45,.08),0 24px 60px -12px rgba(15,27,45,.28);

  /* per-subject accent (set by JS) */
  --accent: var(--moss);
  --accent-2: var(--moss-2);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{
  font-family:'Manrope',-apple-system,sans-serif;
  background:var(--paper);color:var(--ink);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  font-feature-settings:"ss01","ss02";overflow-x:hidden;
}
::selection{background:var(--accent);color:var(--cream)}

/* ========== TYPOGRAPHY ========== */
h1,h2,h3,h4,h5{font-family:'Fraunces',Georgia,serif;font-weight:600;letter-spacing:-.015em;line-height:1.15;color:var(--ink)}
h1{font-size:clamp(2.4rem,6vw,5.2rem);font-weight:700}
h2{font-size:clamp(1.8rem,3.4vw,2.8rem)}
h3{font-size:clamp(1.3rem,2vw,1.6rem)}
h4{font-size:1.1rem}
.serif{font-family:'Fraunces',Georgia,serif}
.mono{font-family:'JetBrains Mono',monospace;font-feature-settings:"ss01"}
.eyebrow{
  font-family:'JetBrains Mono',monospace;font-size:.7rem;
  letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);font-weight:500;
}
.lead{font-size:1.15rem;color:var(--ink-3);font-weight:400;line-height:1.7}

/* ========== TOP NAV ========== */
nav.topbar{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:blur(12px);background:rgba(250,246,238,.86);
  border-bottom:1px solid rgba(217,207,184,.5);padding:14px 0;
  transition:padding .25s ease;
}
.nav-inner{
  max-width:1280px;margin:0 auto;padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{
  display:flex;align-items:center;gap:12px;
  font-family:'Fraunces',serif;font-weight:600;
  color:var(--ink);text-decoration:none;cursor:pointer;border:none;background:none;
}
.brand-mark{
  width:38px;height:38px;border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:grid;place-items:center;color:var(--cream);
  font-family:'Fraunces',serif;font-size:1.1rem;font-weight:700;
  box-shadow:0 4px 12px rgba(47,93,63,.3);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;text-align:left}
.brand-text small{font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.1em;color:var(--accent);text-transform:uppercase;font-weight:500}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a, .nav-links button{
  color:var(--ink-3);text-decoration:none;font-size:.92rem;font-weight:500;
  position:relative;padding:6px 0;transition:color .2s;
  background:none;border:none;cursor:pointer;font-family:inherit;
}
.nav-links a:hover, .nav-links button:hover{color:var(--accent)}
.nav-links a::after, .nav-links button::after{
  content:'';position:absolute;bottom:0;left:0;
  width:0;height:2px;background:var(--amber);transition:width .25s;
}
.nav-links a:hover::after, .nav-links button:hover::after{width:100%}
.nav-cta{
  padding:8px 18px;border-radius:99px;background:var(--ink);color:var(--cream)!important;
  font-weight:600;font-size:.85rem;border:none;cursor:pointer;transition:all .2s;
}
.nav-cta:hover{background:var(--accent)!important;transform:translateY(-1px)}
.nav-cta::after{display:none!important}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.3s}

/* Progress bar */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--amber));
  z-index:101;width:0%;transition:width .1s;
}

/* ========== VIEW SWITCH ========== */
.view{display:none}
.view.active{display:block}

/* ========== HOME PORTAL ========== */
.home-hero{
  min-height:90vh;position:relative;
  display:flex;align-items:center;
  padding:140px 32px 80px;
  background:
    radial-gradient(ellipse at 80% 20%,rgba(200,134,29,.12),transparent 60%),
    radial-gradient(ellipse at 10% 90%,rgba(47,93,63,.18),transparent 50%),
    linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
  overflow:hidden;
}
.home-hero::before{
  content:'';position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(15,27,45,.02) 0,rgba(15,27,45,.02) 1px,transparent 1px,transparent 4px);
  pointer-events:none;
}
.home-hero-inner{
  max-width:1180px;margin:0 auto;width:100%;text-align:center;position:relative;z-index:2;
}
.home-meta{display:flex;justify-content:center;gap:14px;margin-bottom:24px;flex-wrap:wrap}
.home-meta .chip{
  padding:6px 16px;border:1px solid var(--moss);border-radius:99px;
  font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--moss);background:rgba(47,93,63,.06);
}
.home-hero h1{
  margin:8px auto 24px;max-width:920px;
  background:linear-gradient(180deg,var(--ink) 60%,var(--moss));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.home-hero h1 .accent{
  font-style:italic;font-weight:400;
  background:linear-gradient(180deg,var(--terra),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.home-hero p.lead{max-width:680px;margin:0 auto 36px}

/* Class selector */
.class-selector{
  display:flex;justify-content:center;gap:10px;margin-top:8px;flex-wrap:wrap;
}
.class-pill{
  padding:12px 26px;background:var(--cream);
  border:1.5px solid var(--line);border-radius:99px;
  font-family:'Manrope',sans-serif;font-weight:600;font-size:.95rem;
  color:var(--ink-3);cursor:pointer;transition:all .2s;
}
.class-pill.active{background:var(--ink);color:var(--cream);border-color:var(--ink);box-shadow:0 6px 16px rgba(15,27,45,.2)}
.class-pill:not(.active):not(.disabled):hover{border-color:var(--moss);color:var(--moss)}
.class-pill.disabled{opacity:.4;cursor:not-allowed}

/* Subjects section */
.subjects-section{padding:80px 32px;background:var(--paper)}
.subjects-section .container{max-width:1280px;margin:0 auto}
.subjects-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;
}
.subj-card{
  background:var(--cream);border-radius:20px;
  border:1px solid var(--line);overflow:hidden;
  transition:all .25s;display:flex;flex-direction:column;
}
.subj-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.subj-banner{
  padding:32px 28px 24px;color:var(--cream);position:relative;overflow:hidden;
}
.subj-banner::after{
  content:'';position:absolute;top:-30px;right:-30px;
  width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,.12);
}
.subj-card.geo .subj-banner{background:linear-gradient(135deg,var(--moss),var(--moss-2))}
.subj-card.hist .subj-banner{background:linear-gradient(135deg,var(--rust),var(--terra))}
.subj-card.civ .subj-banner{background:linear-gradient(135deg,var(--ink-2),var(--ink))}
.subj-banner .ico{font-size:2rem;margin-bottom:14px;position:relative;z-index:1}
.subj-banner h3{color:var(--cream);font-size:1.6rem;margin-bottom:4px;position:relative;z-index:1}
.subj-banner .book{
  font-family:'JetBrains Mono',monospace;font-size:.75rem;letter-spacing:.1em;
  color:rgba(255,255,255,.75);text-transform:uppercase;position:relative;z-index:1;
}
.subj-chapters{padding:14px 14px 24px;flex:1;display:flex;flex-direction:column;gap:4px}
.chapter-row{
  display:flex;align-items:center;gap:14px;padding:12px 14px;
  border-radius:10px;background:transparent;
  text-align:left;width:100%;border:none;cursor:pointer;
  font-family:inherit;font-size:.9rem;color:var(--ink-3);
  transition:all .15s;
}
.chapter-row:hover:not(.locked){background:var(--paper-2);color:var(--ink)}
.chapter-row.locked{opacity:.45;cursor:not-allowed}
.chapter-row.ready{font-weight:600;color:var(--ink)}
.chapter-num{
  width:32px;height:32px;border-radius:8px;
  display:grid;place-items:center;background:var(--paper-2);
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.78rem;
  color:var(--ink-3);flex-shrink:0;
}
.chapter-row.ready .chapter-num{background:var(--accent);color:#fff}
.subj-card.hist .chapter-row.ready .chapter-num{background:var(--rust)}
.subj-card.civ .chapter-row.ready .chapter-num{background:var(--ink-2)}
.chapter-title-text{flex:1;line-height:1.3}
.chapter-status{
  font-family:'JetBrains Mono',monospace;font-size:.62rem;
  padding:3px 8px;border-radius:4px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
}
.status-ready{background:rgba(47,93,63,.12);color:var(--moss)}
.subj-card.hist .status-ready{background:rgba(140,58,30,.12);color:var(--rust)}
.subj-card.civ .status-ready{background:rgba(27,58,92,.12);color:var(--ink-2)}
.status-soon{background:rgba(15,27,45,.06);color:var(--ink-3)}

/* Mini features section under home */
.features{
  padding:80px 32px;background:var(--paper-2);
}
.features-grid{
  max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;
}
.feat{
  background:var(--cream);padding:28px;border-radius:16px;
  border:1px solid var(--line);transition:all .25s;
}
.feat:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feat .feat-ico{
  width:48px;height:48px;border-radius:12px;
  background:var(--moss);color:var(--cream);
  display:grid;place-items:center;font-size:1.4rem;
  margin-bottom:16px;
}
.feat h4{font-size:1.1rem;margin-bottom:8px}
.feat p{font-size:.92rem;color:var(--ink-3);line-height:1.6}

/* ========== CHAPTER VIEW ========== */
/* HERO */
.hero{
  min-height:100vh;position:relative;
  display:flex;align-items:center;
  padding:140px 32px 80px;
  background:
    radial-gradient(ellipse at 80% 20%,rgba(200,134,29,.12),transparent 60%),
    radial-gradient(ellipse at 10% 90%,rgba(47,93,63,.18),transparent 50%),
    linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg,rgba(15,27,45,.02) 0,rgba(15,27,45,.02) 1px,transparent 1px,transparent 4px);
  pointer-events:none;
}
.hero-inner{
  max-width:1280px;margin:0 auto;width:100%;
  display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:center;
  position:relative;z-index:2;
}
.hero-meta{display:flex;gap:18px;align-items:center;margin-bottom:24px;flex-wrap:wrap}
.hero-meta .chip{
  padding:6px 14px;border:1px solid var(--accent);border-radius:99px;
  font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);background:rgba(47,93,63,.06);
}
.hero h1{
  margin:8px 0 24px;
  background:linear-gradient(180deg,var(--ink) 60%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero h1 .accent{
  font-style:italic;font-weight:400;
  background:linear-gradient(180deg,var(--terra),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{max-width:560px;margin-bottom:36px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;font-family:'Manrope',sans-serif;font-size:.95rem;font-weight:600;
  border-radius:99px;text-decoration:none;cursor:pointer;border:none;
  transition:all .25s;
}
.btn-primary{background:var(--ink-2);color:var(--cream);box-shadow:0 4px 14px rgba(27,58,92,.3)}
.btn-primary:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 8px 22px rgba(47,93,63,.4)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--cream)}
.btn-amber{background:var(--amber);color:var(--ink);box-shadow:0 4px 14px rgba(200,134,29,.3)}
.btn-amber:hover{background:var(--amber-2);transform:translateY(-2px)}

.hero-visual{position:relative;height:520px}
.hero-card{
  position:absolute;background:var(--cream);
  border:1px solid var(--line);border-radius:18px;
  padding:22px;box-shadow:var(--shadow-lg);
  transition:transform .35s ease;
}
.hero-card:hover{transform:translateY(-6px) rotate(0deg) !important}
.hc-1{top:0;right:0;width:230px;transform:rotate(3deg)}
.hc-1 .icon{font-size:2rem}
.hc-2{top:200px;left:0;width:220px;transform:rotate(-4deg);background:var(--accent);color:var(--cream)}
.hc-2 h4{color:var(--cream)}
.hc-3{bottom:0;right:40px;width:240px;transform:rotate(2deg);background:var(--amber);color:var(--ink)}
.hero-card .label{font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.15em;text-transform:uppercase;opacity:.7;margin-bottom:8px}
.hero-card h4{font-size:1rem;margin-bottom:6px}
.hero-card p{font-size:.85rem;line-height:1.5}

@keyframes float{0%,100%{transform:translateY(0) rotate(var(--r,0))}50%{transform:translateY(-10px) rotate(var(--r,0))}}
.hc-1{animation:float 7s ease-in-out infinite;--r:3deg}
.hc-2{animation:float 8s ease-in-out infinite .8s;--r:-4deg}
.hc-3{animation:float 6s ease-in-out infinite 1.4s;--r:2deg}

/* ========== SECTIONS ========== */
section{padding:96px 32px;position:relative}
.container{max-width:1180px;margin:0 auto}
.container-narrow{max-width:880px;margin:0 auto}
.section-head{
  display:flex;align-items:end;justify-content:space-between;gap:24px;
  margin-bottom:56px;border-bottom:1px solid var(--line);padding-bottom:24px;
  flex-wrap:wrap;
}
.section-num{
  font-family:'Fraunces',serif;font-weight:300;font-size:5rem;line-height:1;
  color:var(--accent);font-style:italic;opacity:.6;
}

/* OUTCOMES */
.outcomes-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;
}
.outcome{
  background:var(--cream);border:1px solid var(--line);border-radius:14px;
  padding:24px;transition:all .25s;position:relative;overflow:hidden;
}
.outcome::before{
  content:'';position:absolute;top:0;left:0;width:4px;height:0;
  background:var(--accent);transition:height .3s;
}
.outcome:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.outcome:hover::before{height:100%}
.outcome .num{
  font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.15em;
  color:var(--amber);margin-bottom:10px;font-weight:600;
}
.outcome p{font-size:.95rem;color:var(--ink-3)}

/* DEFINITION CARD */
.definition{
  background:linear-gradient(135deg,var(--ink) 0%,var(--ink-2) 100%);
  color:var(--cream);border-radius:24px;padding:60px 48px;
  position:relative;overflow:hidden;margin:40px 0;
}
.definition::before{
  content:'"';position:absolute;top:-40px;left:30px;
  font-family:'Fraunces',serif;font-size:14rem;color:var(--amber);opacity:.2;
}
.definition .eyebrow{color:var(--amber)}
.definition h3{color:var(--cream);font-size:2rem;margin:8px 0 16px;max-width:780px}
.definition p{font-size:1.05rem;color:rgba(250,251,242,.85);max-width:780px}

/* CRITERIA */
.criteria-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px}
.criterion{background:var(--cream);border-radius:18px;padding:32px 28px;border:1px solid var(--line);position:relative}
.criterion-icon{
  width:54px;height:54px;border-radius:14px;
  display:grid;place-items:center;margin-bottom:18px;
  background:var(--accent);color:var(--cream);
  font-family:'Fraunces',serif;font-size:1.6rem;font-weight:700;
}
.criterion h4{font-size:1.2rem;margin-bottom:10px}
.criterion p{font-size:.93rem;color:var(--ink-3)}

/* TABS */
.classification{background:var(--paper-2);padding-top:120px;padding-bottom:120px}
.tab-nav{
  display:flex;gap:6px;border-bottom:1px solid var(--line);
  margin-bottom:40px;flex-wrap:wrap;
}
.tab-btn{
  padding:14px 22px;background:none;border:none;cursor:pointer;
  font-family:'Manrope',sans-serif;font-size:.92rem;font-weight:500;
  color:var(--ink-3);position:relative;transition:color .2s;
}
.tab-btn:hover{color:var(--ink)}
.tab-btn.active{color:var(--accent);font-weight:600}
.tab-btn.active::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--accent)}
.tab-panel{display:none;animation:fadeIn .35s ease}
.tab-panel.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
.split-card{background:var(--cream);border-radius:18px;padding:32px;border:1px solid var(--line);position:relative;overflow:hidden}
.split-card.dark{background:var(--ink);color:var(--cream)}
.split-card.dark h3,.split-card.dark h4{color:var(--cream)}
.split-card.green{background:var(--accent);color:var(--cream)}
.split-card.green h3,.split-card.green h4{color:var(--cream)}
.split-card.amber{background:var(--amber);color:var(--ink)}
.split-card .tag{
  display:inline-block;padding:4px 12px;border-radius:99px;
  font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.12em;
  text-transform:uppercase;background:rgba(255,255,255,.15);margin-bottom:14px;
}
.split-card.amber .tag,.split-card:not(.dark):not(.green):not(.amber) .tag{background:rgba(15,27,45,.08);color:var(--ink-3)}
.split-card ul{list-style:none;margin-top:14px}
.split-card ul li{padding:10px 0;border-bottom:1px solid rgba(217,207,184,.4);display:flex;justify-content:space-between;gap:12px;font-size:.92rem}
.split-card.dark ul li,.split-card.green ul li{border-color:rgba(255,255,255,.12)}
.split-card ul li:last-child{border-bottom:none}
.split-card ul li b{font-weight:600;color:var(--amber)}
.split-card.amber ul li b{color:var(--ink)}

.usage-table{width:100%;border-collapse:collapse;margin-top:20px;background:var(--cream);border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.usage-table th{background:var(--ink);color:var(--cream);padding:14px 18px;text-align:left;font-family:'Manrope',sans-serif;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.usage-table td{padding:14px 18px;border-bottom:1px solid var(--line);font-size:.93rem}
.usage-table tr:last-child td{border-bottom:none}
.usage-table tr:hover{background:var(--paper)}
.usage-table td:first-child{font-weight:600;color:var(--accent);font-family:'Fraunces',serif;font-size:1.05rem}

/* CASE STUDIES */
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.case{background:var(--cream);border-radius:18px;overflow:hidden;border:1px solid var(--line);transition:all .3s;display:flex;flex-direction:column}
.case:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.case-banner{height:140px;display:flex;align-items:end;padding:24px;position:relative;overflow:hidden;color:var(--cream)}
.case-1 .case-banner{background:linear-gradient(135deg,var(--rust),var(--terra))}
.case-2 .case-banner{background:linear-gradient(135deg,var(--moss),var(--leaf))}
.case-3 .case-banner{background:linear-gradient(135deg,var(--ink),var(--ink-2))}
.case-4 .case-banner{background:linear-gradient(135deg,var(--amber),var(--amber-2));color:var(--ink)}
.case-banner::before{content:'';position:absolute;top:-20px;right:-20px;width:120px;height:120px;border-radius:50%;background:rgba(255,255,255,.1)}
.case-tag{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;font-weight:500;opacity:.85;position:relative;z-index:1}
.case-banner h3{position:relative;z-index:1;color:inherit;margin-top:6px;font-size:1.5rem}
.case-body{padding:24px;flex:1;display:flex;flex-direction:column}
.case-body p{font-size:.92rem;color:var(--ink-3);margin-bottom:14px;flex:1}
.case-stat{display:flex;align-items:baseline;gap:8px;padding-top:16px;border-top:1px dashed var(--line)}
.case-stat .num{font-family:'Fraunces',serif;font-size:2rem;font-weight:700;color:var(--accent);line-height:1}
.case-stat .lbl{font-size:.78rem;color:var(--ink-3);font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.08em}

/* STATS */
.stats-band{background:var(--ink);color:var(--cream);padding:80px 32px}
.stats-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px}
.stat{padding:0 8px}
.stat .num{
  font-family:'Fraunces',serif;font-weight:300;font-size:3.4rem;line-height:1;
  background:linear-gradient(180deg,var(--cream),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px;
}
.stat .num small{font-size:1.4rem;font-style:italic}
.stat h4{color:var(--cream);font-size:1rem;margin-bottom:6px}
.stat p{font-size:.85rem;color:rgba(250,251,242,.65);font-family:'JetBrains Mono',monospace;letter-spacing:.06em}

/* FACTS / TIMELINE */
.facts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.fact{background:var(--cream);padding:24px;border-radius:14px;border-left:3px solid var(--amber);transition:all .25s}
.fact:hover{border-left-color:var(--accent);transform:translateX(4px)}
.fact .yr{font-family:'JetBrains Mono',monospace;font-weight:600;color:var(--accent);font-size:.85rem}
.fact h4{margin:6px 0;font-size:1.1rem}
.fact p{font-size:.9rem;color:var(--ink-3)}

/* ECO SERVICES */
.eco-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:30px}
.eco{background:var(--cream);padding:28px;border-radius:14px;border:1px solid var(--line);text-align:center}
.eco-icon{width:60px;height:60px;border-radius:50%;background:var(--accent);color:var(--cream);display:grid;place-items:center;margin:0 auto 16px;font-size:1.6rem}
.eco h4{font-size:1.05rem;margin-bottom:8px}
.eco p{font-size:.88rem;color:var(--ink-3)}

/* GLOSSARY */
.glossary{background:var(--paper-2)}
.gloss-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.gloss{background:var(--cream);padding:20px 22px;border-radius:12px;border:1px solid var(--line);transition:all .2s}
.gloss:hover{border-color:var(--accent)}
.gloss-term{font-family:'Fraunces',serif;font-weight:600;font-size:1.05rem;color:var(--accent);margin-bottom:4px}
.gloss-def{font-size:.88rem;color:var(--ink-3);line-height:1.55}

/* QUIZ */
.quiz-section{background:linear-gradient(180deg,var(--paper) 0%,var(--cream) 100%)}
.quiz-header{
  background:var(--ink);color:var(--cream);
  border-radius:20px;padding:36px 32px;margin-bottom:32px;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:20px;position:sticky;top:78px;z-index:50;
  box-shadow:var(--shadow-lg);
}
.quiz-header h3{color:var(--cream);font-size:1.4rem}
.quiz-header p{font-size:.9rem;color:rgba(250,251,242,.7);margin-top:4px}
.score-display{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.score-stat{text-align:center}
.score-stat .num{font-family:'Fraunces',serif;font-size:2rem;font-weight:600;color:var(--amber);line-height:1}
.score-stat .lbl{font-family:'JetBrains Mono',monospace;font-size:.65rem;letter-spacing:.12em;text-transform:uppercase;color:rgba(250,251,242,.55)}
.quiz-reset{padding:10px 20px;border-radius:99px;background:var(--amber);color:var(--ink);border:none;font-family:'Manrope',sans-serif;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .2s}
.quiz-reset:hover{background:var(--cream)}
.quiz-test-btn{padding:10px 20px;border-radius:99px;background:var(--cream);color:var(--ink);border:none;font-family:'Manrope',sans-serif;font-weight:600;font-size:.85rem;cursor:pointer;transition:all .2s}
.quiz-test-btn:hover{background:var(--amber)}

.mcq{
  background:var(--cream);border-radius:14px;
  padding:24px 28px;margin-bottom:14px;border:1px solid var(--line);
  transition:border .25s;
}
.mcq.answered.correct{border-color:var(--accent);background:rgba(47,93,63,.04)}
.mcq.answered.wrong{border-color:var(--rust);background:rgba(140,58,30,.04)}
.mcq-q{font-weight:500;font-size:1.02rem;margin-bottom:14px;color:var(--ink);display:flex;gap:14px}
.mcq-num{font-family:'JetBrains Mono',monospace;color:var(--amber);font-weight:600;flex-shrink:0}
.mcq-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mcq-opt{padding:12px 16px;background:var(--paper);border-radius:10px;cursor:pointer;font-size:.93rem;border:1.5px solid transparent;transition:all .15s;display:flex;align-items:center;gap:12px}
.mcq-opt:hover{border-color:var(--ink-2);background:var(--cream)}
.mcq-opt.selected{background:var(--ink-2);color:var(--cream);border-color:var(--ink-2)}
.mcq-opt.correct{background:var(--accent);color:var(--cream);border-color:var(--accent)}
.mcq-opt.incorrect{background:var(--rust);color:var(--cream);border-color:var(--rust)}
.mcq-opt .letter{width:24px;height:24px;border-radius:50%;background:rgba(15,27,45,.08);display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-size:.75rem;font-weight:600;flex-shrink:0}
.mcq-opt.selected .letter,.mcq-opt.correct .letter,.mcq-opt.incorrect .letter{background:rgba(255,255,255,.25)}
.mcq-feedback{margin-top:14px;padding:12px 16px;border-radius:10px;font-size:.88rem;display:none;font-family:'JetBrains Mono',monospace}
.mcq.answered .mcq-feedback{display:block}
.mcq-feedback.right{background:rgba(47,93,63,.1);color:var(--accent)}
.mcq-feedback.wrong-fb{background:rgba(140,58,30,.1);color:var(--rust)}

/* FILL IN BLANKS */
.fib{background:var(--cream);border-radius:14px;padding:22px 26px;margin-bottom:12px;border:1px solid var(--line);display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fib-num{font-family:'JetBrains Mono',monospace;color:var(--amber);font-weight:600;flex-shrink:0}
.fib-q{flex:1;min-width:240px;font-size:.96rem}
.fib-q input{background:var(--paper);border:1.5px solid var(--line);padding:8px 14px;border-radius:8px;font-family:'Manrope',sans-serif;font-size:.92rem;width:160px;outline:none;transition:border .2s}
.fib-q input:focus{border-color:var(--accent)}
.fib-q input.correct{border-color:var(--accent);background:rgba(47,93,63,.08)}
.fib-q input.wrong{border-color:var(--rust);background:rgba(140,58,30,.05)}
.fib-reveal{padding:6px 14px;border-radius:99px;background:var(--ink-2);color:var(--cream);border:none;font-size:.8rem;cursor:pointer;font-weight:500}
.fib-reveal:hover{background:var(--accent)}
.fib-answer{font-family:'JetBrains Mono',monospace;font-size:.85rem;color:var(--accent);font-weight:600;display:none}

/* MATCH */
.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;background:var(--cream);padding:28px;border-radius:16px;border:1px solid var(--line)}
.match-col h4{font-family:'JetBrains Mono',monospace;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.match-item{padding:14px 18px;background:var(--paper);border-radius:10px;margin-bottom:8px;cursor:pointer;border:1.5px solid transparent;transition:all .2s;display:flex;align-items:center;gap:12px;font-size:.93rem}
.match-item:hover{border-color:var(--ink-3)}
.match-item.selected{background:var(--ink-2);color:var(--cream);border-color:var(--ink-2)}
.match-item.matched{background:var(--accent);color:var(--cream);border-color:var(--accent);cursor:default}
.match-item .key{width:26px;height:26px;border-radius:50%;background:rgba(15,27,45,.08);display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-size:.75rem;font-weight:600}
.match-item.selected .key,.match-item.matched .key{background:rgba(255,255,255,.2)}

/* TF */
.tf{background:var(--cream);padding:18px 22px;border-radius:12px;margin-bottom:10px;border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.tf-q{flex:1;min-width:240px;font-size:.95rem}
.tf-num{font-family:'JetBrains Mono',monospace;color:var(--amber);font-weight:600;margin-right:8px}
.tf-btns{display:flex;gap:8px}
.tf-btn{padding:8px 18px;border-radius:99px;border:1.5px solid var(--line);background:var(--paper);font-family:'Manrope',sans-serif;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .15s}
.tf-btn:hover{border-color:var(--ink)}
.tf-btn.right{background:var(--accent);color:var(--cream);border-color:var(--accent)}
.tf-btn.wrong{background:var(--rust);color:var(--cream);border-color:var(--rust)}

/* ACCORDION */
.accordion{margin-top:20px}
.acc{background:var(--cream);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.acc-head{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px;font-weight:500;font-size:.98rem;transition:background .2s}
.acc-head:hover{background:var(--paper)}
.acc-head .acc-num{font-family:'JetBrains Mono',monospace;color:var(--amber);font-weight:600}
.acc-head::after{content:'+';font-family:'Fraunces',serif;font-size:1.5rem;color:var(--accent);font-weight:300;transition:transform .25s;flex-shrink:0}
.acc.open .acc-head::after{transform:rotate(45deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px}
.acc.open .acc-body{max-height:1500px;padding:0 24px 22px}
.acc-body{font-size:.93rem;color:var(--ink-3);line-height:1.7}
.acc-body p{margin-bottom:10px}
.acc-body ul{padding-left:20px;margin:8px 0}
.acc-body li{margin-bottom:6px}
.acc-body strong{color:var(--ink);font-weight:600}

/* AR */
.ar{background:var(--cream);padding:24px 28px;border-radius:14px;margin-bottom:14px;border:1px solid var(--line)}
.ar-num{font-family:'JetBrains Mono',monospace;color:var(--amber);font-weight:600;font-size:.85rem;margin-bottom:8px}
.ar-text{font-size:.94rem;margin-bottom:6px}
.ar-text b{color:var(--accent)}
.ar-options{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}
.ar-opt{padding:10px 14px;background:var(--paper);border-radius:8px;cursor:pointer;font-size:.86rem;border:1.5px solid transparent;transition:all .15s}
.ar-opt:hover{border-color:var(--ink-2)}
.ar-opt.selected{background:var(--ink-2);color:var(--cream)}
.ar-opt.correct{background:var(--accent);color:var(--cream);border-color:var(--accent)}
.ar-opt.incorrect{background:var(--rust);color:var(--cream)}

/* HOTS PROMPT */
.prompt{background:linear-gradient(135deg,var(--amber) 0%,var(--amber-2) 100%);border-radius:18px;padding:32px 36px;margin-bottom:14px;position:relative;overflow:hidden}
.prompt::before{content:'?';font-family:'Fraunces',serif;font-size:11rem;font-weight:300;position:absolute;top:-30px;right:20px;opacity:.18;color:var(--ink);line-height:1}
.prompt .label{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--rust);font-weight:600;margin-bottom:6px}
.prompt h4{font-size:1.25rem;color:var(--ink);margin-bottom:10px;position:relative;z-index:1}
.prompt p{font-size:.95rem;color:var(--ink);position:relative;z-index:1}

/* FOOTER */
footer{background:var(--ink);color:var(--cream);padding:60px 32px 30px}
.foot-inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.foot-brand .brand-mark{width:48px;height:48px;font-size:1.3rem}
.foot-brand b{font-family:'Fraunces',serif;font-size:1.15rem;color:var(--cream)}
footer p{font-size:.88rem;color:rgba(250,251,242,.6);line-height:1.7}
footer h4{color:var(--cream);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-family:'JetBrains Mono',monospace;margin-bottom:14px}
footer ul{list-style:none}
footer ul li{margin-bottom:8px}
footer ul a{color:rgba(250,251,242,.65);text-decoration:none;font-size:.9rem;transition:color .2s;cursor:pointer}
footer ul a:hover{color:var(--amber)}
.foot-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(250,251,242,.1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.82rem;color:rgba(250,251,242,.5);font-family:'JetBrains Mono',monospace}

/* ========== TIMED TEST VIEW ========== */
.test-page{
  min-height:calc(100vh - 78px);padding:120px 32px 80px;
  background:linear-gradient(180deg,var(--paper) 0%,var(--paper-2) 100%);
}
.test-config-screen{max-width:780px;margin:0 auto;text-align:center}
.test-config-screen .eyebrow{justify-content:center}
.test-config-screen h2{font-size:clamp(2.2rem,4.5vw,3.6rem);margin:14px 0 16px;background:linear-gradient(180deg,var(--ink) 60%,var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.test-config-screen .sub{font-size:1.05rem;color:var(--ink-3);margin-bottom:48px;max-width:560px;margin-left:auto;margin-right:auto}
.test-config-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:32px;text-align:left}
.test-config-card{padding:28px;background:var(--cream);border:1px solid var(--line);border-radius:18px}
.test-config-card .lbl{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);font-weight:600;margin-bottom:16px}
.test-config-pills{display:flex;flex-wrap:wrap;gap:8px}
.test-config-pill{padding:12px 22px;border:1.5px solid var(--line);border-radius:99px;background:var(--paper);font-family:'Manrope',sans-serif;font-weight:600;font-size:.92rem;cursor:pointer;transition:all .15s;color:var(--ink)}
.test-config-pill:hover{border-color:var(--accent)}
.test-config-pill.selected{background:var(--accent);color:var(--cream);border-color:var(--accent)}

.start-test-btn{padding:18px 48px;background:var(--ink);color:var(--cream);border:none;border-radius:99px;font-family:'Manrope',sans-serif;font-weight:700;font-size:1rem;letter-spacing:.05em;text-transform:uppercase;cursor:pointer;transition:all .25s;box-shadow:0 8px 24px rgba(15,27,45,.25)}
.start-test-btn:hover{background:var(--accent);transform:translateY(-2px);box-shadow:0 12px 30px rgba(47,93,63,.4)}

/* Test running */
.test-running-screen{display:none;max-width:920px;margin:0 auto}
.test-running-screen.active{display:block}
.test-bar{
  position:sticky;top:78px;z-index:30;background:var(--cream);
  border:1px solid var(--line);border-radius:16px;
  padding:18px 24px;margin-bottom:28px;
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.test-bar .qcount{font-family:'Fraunces',serif;font-size:1.2rem;font-weight:600}
.test-bar .qcount strong{color:var(--accent);font-size:1.5rem}
.test-progress{flex:1;height:8px;background:var(--paper-2);border-radius:99px;overflow:hidden;min-width:120px}
.test-progress .bar{height:100%;background:linear-gradient(90deg,var(--accent),var(--amber));transition:width .3s}
.test-timer{
  padding:10px 20px;background:var(--ink);color:var(--cream);
  border-radius:10px;font-family:'JetBrains Mono',monospace;
  font-weight:700;font-size:1.4rem;letter-spacing:.05em;
  min-width:110px;text-align:center;
}
.test-timer.urgent{background:var(--rust);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.7}}
.test-card{background:var(--cream);border:1px solid var(--line);border-radius:20px;padding:40px 36px;margin-bottom:24px;box-shadow:var(--shadow)}
.test-q{font-family:'Fraunces',serif;font-weight:500;font-size:1.6rem;line-height:1.35;margin-bottom:28px;color:var(--ink)}
.test-options{display:flex;flex-direction:column;gap:10px}
.test-option{
  padding:18px 22px;background:var(--paper);border:1.5px solid var(--line);
  border-radius:14px;text-align:left;font-size:1.05rem;cursor:pointer;
  display:flex;align-items:center;gap:16px;transition:all .15s;
  font-family:inherit;color:var(--ink);
}
.test-option:hover{border-color:var(--accent);background:var(--cream)}
.test-option.picked{background:var(--ink-2);color:var(--cream);border-color:var(--ink-2)}
.test-option .letter{width:34px;height:34px;border-radius:8px;background:rgba(15,27,45,.08);display:grid;place-items:center;font-family:'JetBrains Mono',monospace;font-weight:700;font-size:.9rem;flex-shrink:0}
.test-option.picked .letter{background:rgba(255,255,255,.2)}
.test-controls{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.test-nav{padding:14px 28px;border:1.5px solid var(--line);border-radius:99px;background:var(--cream);font-weight:600;font-size:.92rem;cursor:pointer;font-family:inherit;color:var(--ink);transition:all .15s}
.test-nav:hover:not(:disabled){background:var(--paper)}
.test-nav:disabled{opacity:.4;cursor:not-allowed}
.test-submit{padding:14px 32px;background:var(--ink);color:var(--cream);border:none;border-radius:99px;font-weight:700;font-size:.92rem;letter-spacing:.04em;text-transform:uppercase;cursor:pointer;transition:all .15s;font-family:inherit}
.test-submit:hover{background:var(--accent)}

/* Test result */
.test-result-screen{display:none;max-width:920px;margin:0 auto}
.test-result-screen.active{display:block}
.result-hero{text-align:center;margin-bottom:48px}
.result-hero .eyebrow{justify-content:center;margin-bottom:14px}
.result-hero h2{font-size:clamp(2.4rem,5vw,3.8rem)}
.result-score-big{
  font-family:'Fraunces',serif;font-weight:700;
  font-size:clamp(5rem,12vw,9rem);line-height:1;
  background:linear-gradient(180deg,var(--accent),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin:24px 0 8px;
}
.result-score-big .total{color:var(--ink-3);font-size:.45em;-webkit-text-fill-color:var(--ink-3)}
.result-pct{font-family:'JetBrains Mono',monospace;font-size:1.1rem;color:var(--ink-3);letter-spacing:.05em}
.result-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:48px 0}
.result-stat{padding:28px 20px;background:var(--cream);border:1px solid var(--line);border-radius:16px;text-align:center}
.result-stat .num{font-family:'Fraunces',serif;font-size:2.6rem;font-weight:700;line-height:1}
.result-stat.right .num{color:var(--accent)}
.result-stat.wrong .num{color:var(--rust)}
.result-stat.skip .num{color:var(--amber)}
.result-stat .lbl{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-3);margin-top:8px;font-weight:600}
.result-actions{display:flex;justify-content:center;gap:14px;margin-bottom:48px;flex-wrap:wrap}
.review-section h3{font-family:'Fraunces',serif;font-weight:600;margin-bottom:20px;font-size:1.6rem}
.review-item{padding:20px 24px;background:var(--cream);border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.review-item.r-right{border-left:4px solid var(--accent)}
.review-item.r-wrong{border-left:4px solid var(--rust)}
.review-item.r-skip{border-left:4px solid var(--amber)}
.review-item .rq{font-size:.98rem;font-weight:600;margin-bottom:6px}
.review-item .ra{font-size:.88rem;color:var(--ink-3);font-family:'JetBrains Mono',monospace}
.review-item .ra .right-ans{color:var(--accent);font-weight:600}
.review-item .ra .wrong-ans{color:var(--rust);text-decoration:line-through}

/* RESPONSIVE */
@media (max-width:900px){
  .nav-links{display:none}
  .menu-btn{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--cream);padding:24px 32px;border-bottom:1px solid var(--line);gap:16px}
  .hero-inner{grid-template-columns:1fr;gap:60px}
  .hero-visual{height:420px}
  .criteria-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .mcq-options{grid-template-columns:1fr}
  .ar-options{grid-template-columns:1fr}
  .foot-inner{grid-template-columns:1fr;gap:32px}
  .quiz-header{position:relative;top:0}
  .match-grid{grid-template-columns:1fr}
  section{padding:64px 24px}
  .hero,.home-hero{padding:120px 24px 60px}
  .definition{padding:40px 28px}
  .subjects-grid{grid-template-columns:1fr;gap:18px}
  .test-config-grid{grid-template-columns:1fr}
  .result-stats{grid-template-columns:1fr 1fr 1fr;gap:10px}
  .test-card{padding:28px 22px}
}
@media (max-width:560px){
  .hc-1{width:200px;right:10px}
  .hc-2{width:190px;left:10px}
  .hc-3{width:210px;right:10px}
  .section-num{font-size:3.5rem}
  .stats-grid{grid-template-columns:1fr 1fr}
  .result-stat .num{font-size:1.8rem}
}

/* ===================================================================
   ADDITIONS FOR JSON-DRIVEN SHELL (v3)
   =================================================================== */

/* Chapter load states */
.chapter-load{
  min-height:100vh;display:grid;place-items:center;padding:40px 24px;text-align:center;
}
.chapter-load .ico{
  font-size:3rem;margin-bottom:16px;animation:floatPulse 2.2s ease-in-out infinite;
}
.chapter-load h2{font-size:1.6rem;margin-bottom:10px}
.chapter-load p{color:var(--ink-3);max-width:540px;margin:0 auto 24px;font-size:.95rem}
.chapter-load .btn{display:inline-block;margin-top:8px}
.chapter-load code{
  font-family:'JetBrains Mono',monospace;background:var(--paper-2);
  padding:3px 8px;border-radius:6px;font-size:.85rem;color:var(--accent);
  display:inline-block;margin:4px 2px;word-break:break-all;
}
@keyframes floatPulse{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-8px)}
}

/* HOTS prompt gradients (3 variants cycled by index) */
.prompt.h-1{ /* default — keep .prompt base style */ }
.prompt.h-2{
  background:linear-gradient(135deg,var(--terra),var(--rust));
  color:var(--cream);
}
.prompt.h-2 .label{color:var(--amber)}
.prompt.h-2 h4{color:var(--cream)}
.prompt.h-2 p{color:rgba(250,251,242,.85)}
.prompt.h-3{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:var(--cream);margin-top:14px;
}
.prompt.h-3 .label{color:var(--amber)}
.prompt.h-3 h4{color:var(--cream)}
.prompt.h-3 p{color:rgba(250,251,242,.85)}

/* Case study gradient cycle — uses --accent so any subject themes nicely */
.case-grad-1 .case-banner{background:linear-gradient(135deg,var(--rust),var(--terra))}
.case-grad-2 .case-banner{background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.case-grad-3 .case-banner{background:linear-gradient(135deg,var(--ink-2),var(--ink))}
.case-grad-4 .case-banner{background:linear-gradient(135deg,var(--amber),var(--terra))}

/* When a subj-card has no built-in colour class, fall back to accent */
.subj-card.science .subj-banner{background:linear-gradient(135deg,var(--leaf),var(--moss))}
.subj-card.maths .subj-banner{background:linear-gradient(135deg,var(--terra),var(--rust))}
.subj-card.english .subj-banner{background:linear-gradient(135deg,var(--sky),var(--ink-2))}
.subj-card.hindi .subj-banner{background:linear-gradient(135deg,var(--amber),var(--terra))}
.subj-card.punjabi .subj-banner{background:linear-gradient(135deg,var(--moss-2),var(--moss))}
.subj-card.science .chapter-row.ready .chapter-num{background:var(--leaf)}
.subj-card.maths .chapter-row.ready .chapter-num{background:var(--terra)}
.subj-card.english .chapter-row.ready .chapter-num{background:var(--sky)}
.subj-card.hindi .chapter-row.ready .chapter-num{background:var(--amber)}
.subj-card.punjabi .chapter-row.ready .chapter-num{background:var(--moss-2)}
.subj-card.science .status-ready{background:rgba(86,134,74,.14);color:var(--leaf)}
.subj-card.maths .status-ready{background:rgba(185,84,43,.14);color:var(--terra)}
.subj-card.english .status-ready{background:rgba(62,124,177,.14);color:var(--sky)}
.subj-card.hindi .status-ready{background:rgba(200,134,29,.14);color:var(--amber)}
.subj-card.punjabi .status-ready{background:rgba(31,69,48,.14);color:var(--moss-2)}

/* ===================================================================
   VISUAL NOTES SECTION (chapter infographic cards)
   =================================================================== */
.visual-notes{
  padding:80px 32px;
  background:linear-gradient(180deg,var(--paper) 0%,var(--cream) 100%);
}
.visual-notes .container{max-width:1280px;margin:0 auto}
.visual-notes .lead{
  max-width:760px;color:var(--ink-3);font-size:1.02rem;
  margin-bottom:36px;
}
.notes-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.note-card{
  display:flex;flex-direction:column;
  background:var(--cream);border-radius:16px;overflow:hidden;
  border:1px solid var(--line);
  text-decoration:none;color:inherit;
  transition:all .35s cubic-bezier(.16,1,.3,1);
  box-shadow:var(--shadow-sm,0 1px 2px rgba(15,27,45,.06));
}
.note-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:var(--accent);
}
.note-thumb{
  width:100%;aspect-ratio:3/4;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--paper-2);position:relative;
}
.note-thumb img{
  width:100%;height:100%;object-fit:cover;object-position:top;
  transition:transform .5s ease;
}
.note-card:hover .note-thumb img{transform:scale(1.03)}
.note-meta{padding:22px 24px 24px}
.note-num{
  font-family:'JetBrains Mono',monospace;
  font-size:.75rem;letter-spacing:.12em;
  color:var(--accent);font-weight:600;margin-bottom:6px;
}
.note-meta h4{
  font-family:'Fraunces',serif;font-size:1.15rem;
  line-height:1.3;margin-bottom:8px;color:var(--ink);
  font-weight:500;
}
.note-meta p{
  font-size:.88rem;color:var(--ink-3);
  line-height:1.55;margin-bottom:14px;
}
.note-cta{
  font-family:'JetBrains Mono',monospace;
  font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  font-weight:600;color:var(--accent);
  padding-top:10px;border-top:1px solid var(--line);
}
@media(max-width:900px){
  .notes-grid{grid-template-columns:1fr 1fr;gap:18px}
  .visual-notes{padding:60px 24px}
}
@media(max-width:560px){
  .notes-grid{grid-template-columns:1fr;gap:16px}
  .note-thumb{aspect-ratio:4/3}
  .visual-notes{padding:50px 20px}
}

/* =========================================================================
   CLASS 12 · PSEB subject card colours (added 2026-05-16)
   physics → leaf green · chemistry → terra/rust · biology → moss · maths → sky
   ========================================================================= */
.subj-card.physics .subj-banner{background:linear-gradient(135deg,var(--leaf),var(--moss-2))}
.subj-card.physics .chapter-row.ready .chapter-num{background:var(--leaf)}
.subj-card.physics .status-ready{background:rgba(86,134,74,.14);color:var(--leaf)}

.subj-card.chemistry .subj-banner{background:linear-gradient(135deg,var(--amber),var(--terra))}
.subj-card.chemistry .chapter-row.ready .chapter-num{background:var(--amber)}
.subj-card.chemistry .status-ready{background:rgba(200,134,29,.14);color:var(--amber)}

.subj-card.biology .subj-banner{background:linear-gradient(135deg,var(--moss-2),var(--moss))}
.subj-card.biology .chapter-row.ready .chapter-num{background:var(--moss-2)}
.subj-card.biology .status-ready{background:rgba(31,69,48,.14);color:var(--moss-2)}

/* Class pill — clickable (non-active, non-disabled) needs visible state */
.class-pill[data-class]:not(.active):not(.disabled){
  cursor:pointer;
  opacity:.78;
}
.class-pill[data-class]:not(.active):not(.disabled):hover{
  opacity:1;
  background:var(--cream);
}