/* ============================================================
   SheLeads AI — shared lesson-page styles (layered on hub.css)
   ============================================================ */

.lesson-head {
  padding: 92px clamp(20px, 5vw, 32px) 12px;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.lesson-head h1 {
  font-size: clamp(2rem, 5.5vw, 3.2rem);
  font-weight: 800; letter-spacing: -0.02em; line-height: 1.08;
  background: linear-gradient(180deg, #fff, #b9bdd6);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.lesson-head h1 .grad {
  background: linear-gradient(120deg, var(--lac, var(--accent)), var(--lac2, var(--accent-2)));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.lesson-head .tagline {
  margin: 0.9rem auto 0; color: var(--text-dim);
  max-width: 60ch; font-size: clamp(0.95rem, 2vw, 1.06rem);
}
.obj-chips {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin-top: 18px; padding: 0 16px;
}
.obj-chips .chip { font-size: 0.78rem; }

.lwrap {
  max-width: 940px; margin: 0 auto;
  padding: 24px clamp(16px, 5vw, 32px) 80px;
}

/* ---------- Lesson section ---------- */
.lsec { margin-top: 56px; }
.lsec-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.lsec-num {
  font-size: 0.72rem; font-weight: 800; letter-spacing: 0.1em;
  color: var(--lac, var(--accent));
  background: color-mix(in srgb, var(--lac, var(--accent)) 13%, transparent);
  border: 1px solid color-mix(in srgb, var(--lac, var(--accent)) 30%, transparent);
  padding: 4px 11px; border-radius: 999px; white-space: nowrap;
}
.lsec-head h2 { font-size: clamp(1.25rem, 3vw, 1.6rem); font-weight: 800; letter-spacing: -0.01em; }
.lsec > p.lead { color: var(--text-dim); font-size: 0.95rem; max-width: 70ch; margin-bottom: 18px; }

/* week divider between chapters on combined pages */
.wk-divider {
  margin: 64px 0 8px; display: flex; align-items: center; gap: 14px;
}
.wk-divider .line { flex: 1; height: 1px; background: var(--border); }
.wk-divider .tag {
  font-size: 0.74rem; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--lac2, var(--accent-2));
}

/* ---------- Demo panel ---------- */
.demo {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 16px; padding: 20px; margin-top: 14px;
}
.demo .demo-note { font-size: 0.78rem; color: var(--text-faint); margin-top: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 640px) { .grid2 { grid-template-columns: 1fr; } }

/* control row */
.ctl-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 14px; }
.ctl-row label { font-size: 0.82rem; color: var(--text-dim); display: flex; align-items: center; gap: 8px; }
.ctl-row input[type="range"] { accent-color: var(--lac, var(--accent)); width: 130px; cursor: pointer; }
.ctl-val { color: var(--lac, var(--accent)); font-weight: 700; font-size: 0.82rem; min-width: 34px; }

/* small tab toggle */
.tabs { display: inline-flex; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 3px; gap: 3px; }
.tabs button {
  border: none; background: transparent; color: var(--text-dim);
  font-size: 0.82rem; font-weight: 600; font-family: var(--font);
  padding: 7px 14px; border-radius: 8px; cursor: pointer;
}
.tabs button.on { background: color-mix(in srgb, var(--lac, var(--accent)) 22%, transparent); color: var(--text); }

/* mono block for prompts / code / data */
.mono {
  font-family: var(--mono); font-size: 0.8rem; line-height: 1.6;
  background: var(--bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px 16px; overflow-x: auto; white-space: pre-wrap; word-break: break-word;
}
.mono .hl { border-radius: 4px; padding: 1px 3px; cursor: pointer; transition: filter 0.15s; }
.mono .hl:hover { filter: brightness(1.35); }

/* status / result line */
.result-line {
  margin-top: 12px; padding: 10px 14px; border-radius: 10px; font-size: 0.86rem;
  background: color-mix(in srgb, var(--lac, var(--accent)) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--lac, var(--accent)) 24%, var(--border));
}
.good { color: #7ee787; } .bad { color: #ff7a90; } .warn { color: #ffd479; }

/* generic mini-bar */
.mbar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; }
.mbar-lbl { width: 110px; text-align: right; font-size: 0.8rem; color: var(--text-dim); flex-shrink: 0; }
.mbar-track { flex: 1; height: 20px; background: var(--bg); border-radius: 5px; overflow: hidden; }
.mbar-fill { height: 100%; border-radius: 5px; transition: width 0.35s cubic-bezier(0.4,0,0.2,1), background 0.3s; }
.mbar-val { width: 52px; font-size: 0.78rem; color: var(--text-faint); }

/* week prev/next footer nav */
.wknav {
  display: flex; justify-content: space-between; gap: 12px;
  max-width: 940px; margin: 30px auto 0; padding: 0 clamp(16px, 5vw, 32px);
}
.wknav a {
  flex: 1; max-width: 330px; display: flex; flex-direction: column; gap: 3px;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 14px;
  padding: 14px 18px; color: var(--text); transition: border-color 0.2s, transform 0.2s;
}
.wknav a:hover { border-color: var(--lac, var(--accent)); transform: translateY(-2px); }
.wknav a.next { text-align: right; margin-left: auto; }
.wknav .k { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-faint); }
.wknav .t { font-size: 0.9rem; font-weight: 600; }