/* News Channel Operator — course site */
:root {
  --ink: #14181f;
  --paper: #ffffff;
  --paper-2: #f4f5f7;
  --line: #dde0e5;
  --red: #c8102e;
  --red-dark: #9d0c24;
  --navy: #101827;
  --navy-2: #1b2536;
  --muted: #5b6472;
  --ok: #1a7f4e;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a { color: var(--red); }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 20px; }

/* Header */
header.site {
  background: var(--navy);
  color: #fff;
  border-bottom: 4px solid var(--red);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; gap: 16px; flex-wrap: wrap;
}
.brand { font-family: var(--serif); font-size: 1.25rem; font-weight: bold; color: #fff; text-decoration: none; letter-spacing: .3px; }
.brand .tag { color: var(--red); }
nav.main a { color: #cfd6e0; text-decoration: none; margin-left: 18px; font-size: .95rem; }
nav.main a:hover, nav.main a.active { color: #fff; }

/* Hero */
.hero { background: var(--navy-2); color: #fff; padding: 64px 0 56px; }
.hero h1 { font-family: var(--serif); font-size: clamp(1.9rem, 4.5vw, 3rem); line-height: 1.15; max-width: 800px; }
.hero p.lede { margin-top: 18px; font-size: 1.15rem; color: #c7cfdb; max-width: 680px; }
.hero .cred { margin-top: 22px; display: inline-block; background: rgba(200,16,46,.15); border: 1px solid var(--red); padding: 8px 14px; border-radius: 4px; font-size: .95rem; color: #ffd7dd; }

.btn {
  display: inline-block; background: var(--red); color: #fff; text-decoration: none;
  padding: 13px 26px; border-radius: 4px; font-weight: 600; font-size: 1rem;
  border: none; cursor: pointer; font-family: var(--sans);
}
.btn:hover { background: var(--red-dark); }
.btn.ghost { background: transparent; border: 1px solid #4a5568; color: #dbe2ec; }
.btn.ghost:hover { border-color: #fff; color: #fff; background: transparent; }
.btn:disabled { background: #9aa1ac; cursor: not-allowed; }
.hero .cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }

/* Sections */
section.block { padding: 56px 0; }
section.block.alt { background: var(--paper-2); }
h2.sec { font-family: var(--serif); font-size: 1.75rem; margin-bottom: 8px; }
p.sub { color: var(--muted); margin-bottom: 28px; max-width: 640px; }

/* Curriculum list */
.mods { display: grid; gap: 12px; }
.mod {
  background: var(--paper); border: 1px solid var(--line); border-radius: 6px;
  padding: 18px 20px; display: flex; gap: 16px; align-items: baseline;
}
.mod .num { font-family: var(--serif); font-size: 1.4rem; color: var(--red); min-width: 2.2rem; font-weight: bold; }
.mod h3 { font-size: 1.05rem; }
.mod .lessons { color: var(--muted); font-size: .9rem; margin-top: 4px; }
.mod .soon { margin-left: auto; font-size: .78rem; color: var(--muted); border: 1px solid var(--line); padding: 2px 8px; border-radius: 10px; white-space: nowrap; }
.mod .ready { margin-left: auto; font-size: .78rem; color: var(--ok); border: 1px solid var(--ok); padding: 2px 8px; border-radius: 10px; white-space: nowrap; }

/* Cert + pricing */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
@media (max-width: 760px) { .grid2 { grid-template-columns: 1fr; } }
.pricebox { background: var(--paper); border: 2px solid var(--navy); border-radius: 8px; padding: 28px; }
.pricebox .price { font-family: var(--serif); font-size: 2.6rem; }
.pricebox ul { margin: 16px 0 22px 20px; }
.pricebox li { margin-bottom: 8px; }
.finePrint { font-size: .85rem; color: var(--muted); margin-top: 12px; }

/* Course page layout */
.course-layout { display: grid; grid-template-columns: 300px 1fr; gap: 0; min-height: calc(100vh - 70px); }
@media (max-width: 860px) { .course-layout { grid-template-columns: 1fr; } }
aside.toc { background: var(--paper-2); border-right: 1px solid var(--line); padding: 24px 18px; }
aside.toc h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 18px 0 8px; }
aside.toc details.tocmod { margin-bottom: 6px; }
aside.toc details.tocmod summary {
  font-size: .8rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); padding: 8px 10px; cursor: pointer; border-radius: 4px;
  list-style: none; user-select: none;
}
aside.toc details.tocmod summary::-webkit-details-marker { display: none; }
aside.toc details.tocmod summary::before { content: "▸ "; }
aside.toc details.tocmod[open] summary::before { content: "▾ "; }
aside.toc details.tocmod summary:hover { background: #e8eaee; color: var(--ink); }
aside.toc details.tocmod[open] summary { color: var(--ink); font-weight: 600; }
aside.toc .modok { color: var(--ok); }
aside.toc a { display: block; padding: 7px 10px; border-radius: 4px; color: var(--ink); text-decoration: none; font-size: .93rem; }
aside.toc a:hover { background: #e8eaee; }
aside.toc a.active { background: var(--navy); color: #fff; }
aside.toc a.locked { color: #a3a9b3; pointer-events: none; }
aside.toc .done::after { content: " ✓"; color: var(--ok); font-weight: bold; }

main.lesson { padding: 36px 40px; max-width: 860px; }
main.lesson h1 { font-family: var(--serif); font-size: 1.7rem; margin-bottom: 6px; }
.videoph {
  aspect-ratio: 16/9; background: var(--navy); border-radius: 8px; margin: 22px 0;
  display: flex; align-items: center; justify-content: center; color: #8892a2; font-size: .95rem;
}
.videoph iframe { width: 100%; height: 100%; border: 0; border-radius: 8px; }

/* Lesson prev/next navigation */
.lessonnav {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; margin: 26px 0 10px; flex-wrap: wrap;
}
.navbtn {
  display: inline-block; padding: 12px 18px; border-radius: 6px;
  text-decoration: none; font-size: .95rem; max-width: 48%;
}
.navbtn.prev { color: var(--muted); border: 1px solid var(--line); }
.navbtn.prev:hover { color: var(--ink); border-color: var(--navy); }
.navbtn.next { background: var(--red); color: #fff; font-weight: 600; margin-left: auto; }
.navbtn.next:hover { background: var(--red-dark); }

/* Lesson downloads */
.lessondl { display: flex; gap: 10px; flex-wrap: wrap; margin: 18px 0 4px; align-items: center; }
.lessondl a {
  display: inline-block; padding: 9px 14px; border: 1px solid var(--line);
  border-radius: 6px; background: var(--paper-2); color: var(--ink);
  text-decoration: none; font-size: .9rem; font-weight: 600;
}
.lessondl a:hover { border-color: var(--red); color: var(--red); }
.lessondl a.allkit { border: none; background: none; color: var(--muted); font-weight: 400; }
.lessondl a.allkit:hover { color: var(--red); }

/* Notes */
.notesbox { margin: 26px 0 6px; }
.notesbox h3 { font-family: var(--serif); font-size: 1.05rem; margin-bottom: 8px; }
.notesbox .notesave { font-size: .75rem; color: var(--ok); font-family: var(--sans); margin-left: 8px; }
.notesbox textarea {
  width: 100%; min-height: 120px; padding: 12px 14px; font-family: var(--sans);
  font-size: .95rem; line-height: 1.5; color: var(--ink);
  border: 1px solid var(--line); border-radius: 6px; background: var(--paper-2);
  resize: vertical;
}
.notesbox textarea:focus { outline: none; border-color: var(--navy); background: var(--paper); }
.notespanel { margin: 14px 0 22px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper-2); }
.notespanel summary { padding: 12px 16px; cursor: pointer; font-weight: 600; font-size: .95rem; }
.notespanel > div { padding: 4px 18px 14px; }
.notespanel h4 { font-size: .85rem; color: var(--red); margin: 10px 0 4px; }
.notespanel p { font-size: .92rem; color: var(--ink); }
.notespanel .nonotes { color: var(--muted); font-style: italic; }

/* Quiz */
.quiz .qcard { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 20px 22px; margin-bottom: 16px; }
.quiz .qcard p.qt { font-weight: 600; margin-bottom: 12px; }
.quiz label { display: block; padding: 9px 12px; border: 1px solid var(--line); border-radius: 5px; margin-bottom: 8px; cursor: pointer; }
.quiz label:hover { border-color: var(--navy); }
.quiz label.correct { border-color: var(--ok); background: #ecf7f1; }
.quiz label.wrong { border-color: var(--red); background: #fdf0f2; }
.quiz .explain { font-size: .9rem; color: var(--muted); margin-top: 8px; border-left: 3px solid var(--line); padding-left: 10px; }
.result { border-radius: 8px; padding: 22px; margin: 20px 0; font-size: 1.05rem; }
.result.pass { background: #ecf7f1; border: 1px solid var(--ok); }
.result.fail { background: #fdf0f2; border: 1px solid var(--red); }

/* Certificate */
.certwrap { text-align: center; padding: 30px 0; }
#certCanvas { max-width: 100%; height: auto; border: 1px solid var(--line); box-shadow: 0 4px 18px rgba(0,0,0,.12); }
.certform { margin: 20px auto; max-width: 420px; display: flex; gap: 10px; }
.certform input { flex: 1; padding: 11px 12px; border: 1px solid var(--line); border-radius: 4px; font-size: 1rem; }

footer.site { background: var(--navy); color: #97a1b0; padding: 30px 0; font-size: .88rem; margin-top: 60px; }
footer.site a { color: #c7cfdb; }