/* ============================================================
   JBIT Learn — course site CSS
   Extends the jbitnv.com palette: navy + gold on Helvetica.
   ============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
:root {
  --brand-blue:  #3a3d8f;
  --gold:        #c49a2a;
  --gold-hover:  #b08a20;
  --gold-light:  rgba(196, 154, 42, 0.10);
  --gold-border: rgba(196, 154, 42, 0.25);
  --navy:        #1a1a2e;
  --navy-mid:    #16213e;
  --navy-deep:   #0f3460;
  --bg-warm:     #fafaf8;
  --bg-border:   #f0ede6;
  --text:        #1a1a2e;
  --text-mid:    #555;
  --text-light:  #777;
  --text-muted:  #999;
  --sidebar-bg:  #f6f4ef;
  --sidebar-active: #fff;
  --white:       #ffffff;
  --radius-sm:   6px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --green-ok:    #198754;
  --red-no:      #b02a37;
}
body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-weight: 300; color: var(--text); line-height: 1.7;
  background: var(--white); -webkit-font-smoothing: antialiased;
}
a { color: var(--gold); text-decoration: none; transition: color .15s; }
a:hover { color: var(--gold-hover); }
img { max-width: 100%; display: block; }

/* ---------- TOP BAR ---------- */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: rgba(26, 26, 46, 0.97); color: #fff;
  border-bottom: 2px solid var(--gold);
}
.topbar-brand { display: flex; align-items: center; gap: 0.75rem; }
.topbar-brand .mark {
  font-size: 1rem; font-weight: 400; letter-spacing: 0.2em;
  color: var(--gold);
}
.topbar-brand .course-name {
  font-size: 0.9rem; font-weight: 300; color: rgba(255,255,255,0.85);
  border-left: 1px solid rgba(255,255,255,0.2);
  padding-left: 0.75rem;
}
.topbar-links { display: flex; gap: 1.25rem; align-items: center; }
.topbar-links a {
  font-size: 0.82rem; color: rgba(255,255,255,0.75); font-weight: 300;
}
.topbar-links a:hover { color: var(--gold); }
.topbar-cta {
  background: var(--gold); color: var(--white) !important;
  padding: 0.4rem 0.95rem; border-radius: var(--radius-sm);
  font-weight: 400; font-size: 0.82rem;
}
.topbar-cta:hover { background: var(--gold-hover); color: #fff !important; }
.menu-toggle { display: none; background: none; border: none; color: #fff; cursor: pointer; padding: 0.4rem; font-size: 1.3rem; }

/* ---------- LAYOUT ---------- */
.shell { display: grid; grid-template-columns: 280px 1fr; min-height: calc(100vh - 56px); }
.sidebar {
  background: var(--sidebar-bg); border-right: 1px solid var(--bg-border);
  padding: 1.75rem 1.25rem; overflow-y: auto;
  position: sticky; top: 56px; height: calc(100vh - 56px);
}
.sidebar h2 {
  font-size: 0.7rem; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.16em; color: var(--text-light);
  margin: 0 0 0.85rem 0.25rem;
}
.sidebar .module {
  margin-bottom: 1.4rem;
}
.sidebar .module-title {
  font-size: 0.85rem; font-weight: 500; color: var(--navy);
  margin: 0 0 0.4rem 0.25rem; line-height: 1.35;
}
.sidebar .module-title .num {
  display: inline-block; font-size: 0.65rem; font-weight: 500;
  background: var(--gold); color: #fff; padding: 0.1rem 0.45rem;
  border-radius: 999px; margin-right: 0.4rem; letter-spacing: 0.05em;
}
.sidebar ul { list-style: none; }
.sidebar li a {
  display: block; padding: 0.4rem 0.6rem; margin-bottom: 0.15rem;
  font-size: 0.85rem; color: var(--text-mid); font-weight: 300;
  border-radius: var(--radius-sm); line-height: 1.4;
}
.sidebar li a .badge {
  display: inline-block; font-size: 0.6rem; padding: 0.05rem 0.4rem;
  border-radius: 999px; margin-right: 0.45rem; vertical-align: middle;
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: 500;
}
.sidebar li a .badge.page  { background: rgba(58, 61, 143, 0.12); color: var(--brand-blue); }
.sidebar li a .badge.quiz  { background: rgba(176, 42, 55, 0.10); color: var(--red-no); }
.sidebar li a .badge.video { background: rgba(15, 52, 96, 0.12); color: var(--navy-deep); }
.sidebar li a:hover { color: var(--gold); background: var(--white); }
.sidebar li a.active {
  background: var(--white); color: var(--navy); font-weight: 400;
  border-left: 3px solid var(--gold); padding-left: 0.5rem;
}

/* ---------- MAIN ---------- */
.main { padding: 2.5rem 3rem 4rem; max-width: 880px; }
.crumbs { font-size: 0.78rem; color: var(--text-light); margin-bottom: 1.5rem; }
.crumbs a { color: var(--text-mid); }
.crumbs a:hover { color: var(--gold); }
.crumbs .sep { margin: 0 0.5rem; color: var(--text-muted); }

.page-kicker {
  font-size: 0.75rem; font-weight: 500; color: var(--gold);
  letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 0.45rem;
}
.main h1 {
  font-weight: 300; font-size: 2.25rem; color: var(--navy);
  letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 1rem;
}
.main h2 {
  font-weight: 600; font-size: 1.5rem; color: var(--navy);
  letter-spacing: -0.01em; margin: 2.4rem 0 0.85rem;
  padding-bottom: 0.55rem; border-bottom: 3px solid var(--gold);
}
.main h3 {
  font-weight: 500; font-size: 1.05rem; color: var(--navy);
  margin: 1.6rem 0 0.5rem;
}
.main p { margin-bottom: 1rem; color: var(--text); }
.main p strong { color: var(--navy); font-weight: 500; }
.main em { color: var(--brand-blue); font-style: italic; }
.main ul, .main ol { margin: 0 0 1rem 1.5rem; }
.main li { margin-bottom: 0.4rem; }
.main blockquote {
  border-left: 3px solid var(--gold); padding: 0.5rem 0 0.5rem 1.2rem;
  margin: 1.4rem 0; color: var(--text-mid); font-style: italic;
}
.main iframe {
  width: 100%; max-width: 720px; aspect-ratio: 16 / 9; height: auto;
  border: 0; border-radius: var(--radius-md);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  margin: 1rem 0;
}
.main hr {
  border: none; border-top: 1px solid var(--bg-border); margin: 2.5rem 0;
}

/* ---------- META & NAV ---------- */
.meta-row {
  display: flex; gap: 1.5rem; flex-wrap: wrap;
  font-size: 0.82rem; color: var(--text-light);
  margin-bottom: 2rem;
}
.meta-row .meta-pill {
  background: var(--bg-warm); border: 1px solid var(--bg-border);
  padding: 0.25rem 0.75rem; border-radius: 999px;
}

.pager {
  display: flex; justify-content: space-between; gap: 1rem;
  margin-top: 3rem; padding-top: 1.5rem;
  border-top: 1px solid var(--bg-border);
}
.pager a, .pager span.disabled {
  flex: 1; padding: 1rem 1.25rem; border-radius: var(--radius-md);
  background: var(--bg-warm); border: 1px solid var(--bg-border);
  color: var(--navy); display: block;
}
.pager a:hover { background: var(--white); border-color: var(--gold); color: var(--navy); }
.pager .label {
  display: block; font-size: 0.7rem; color: var(--text-light);
  text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 0.25rem;
}
.pager .title { font-size: 0.92rem; font-weight: 400; }
.pager .next { text-align: right; }
.pager span.disabled { color: var(--text-muted); }

/* ---------- COURSE LANDING ---------- */
.hero-card {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 50%, var(--navy-deep) 100%);
  color: #fff; padding: 3.5rem 3rem; border-radius: var(--radius-lg);
  margin-bottom: 3rem; position: relative; overflow: hidden;
}
.hero-card::after {
  content: ''; position: absolute; top: -50%; right: -10%;
  width: 60%; height: 200%;
  background: radial-gradient(circle, rgba(196,154,42,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero-card .kicker {
  display: inline-block; font-size: 0.72rem; font-weight: 400;
  text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--gold); margin-bottom: 1rem;
  border: 1px solid var(--gold-border); padding: 0.25rem 0.85rem;
  border-radius: 999px; background: var(--gold-light);
}
.hero-card h1 {
  font-weight: 300; font-size: 2.6rem; color: #fff;
  letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 0.75rem;
}
.hero-card .tagline {
  font-size: 1.05rem; color: rgba(255,255,255,0.75); max-width: 560px;
  margin-bottom: 1.75rem; line-height: 1.6;
}
.hero-card .crew {
  font-size: 0.85rem; color: rgba(255,255,255,0.6);
}
.hero-card .crew strong { color: #fff; font-weight: 400; }

.module-list { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.module-card {
  border: 1px solid var(--bg-border); border-radius: var(--radius-md);
  padding: 1.75rem 1.75rem; background: var(--white);
  transition: border-color .15s, transform .15s;
}
.module-card:hover { border-color: var(--gold); }
.module-card .num-pill {
  display: inline-block; background: var(--gold); color: #fff;
  padding: 0.2rem 0.6rem; border-radius: 999px;
  font-size: 0.7rem; font-weight: 500; letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}
.module-card h2 {
  font-weight: 400; font-size: 1.3rem; color: var(--navy);
  margin-bottom: 0.5rem; letter-spacing: -0.01em;
}
.module-card .preview {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem;
}
.module-card .preview span {
  font-size: 0.72rem; padding: 0.25rem 0.7rem; border-radius: 999px;
  background: var(--bg-warm); color: var(--text-mid);
  border: 1px solid var(--bg-border);
}

/* ---------- QUIZ ---------- */
.quiz-intro {
  background: var(--bg-warm); border: 1px solid var(--bg-border);
  padding: 1.5rem 1.75rem; border-radius: var(--radius-md);
  margin-bottom: 2rem;
}
.quiz-intro h3 { margin-top: 0; }
.quiz-intro ul { margin: 0.5rem 0 0 1.2rem; }
.question {
  border: 1px solid var(--bg-border); border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem; margin-bottom: 1.5rem; background: #fff;
}
.question .qnum {
  display: inline-block; background: var(--brand-blue); color: #fff;
  padding: 0.15rem 0.55rem; border-radius: 4px;
  font-size: 0.72rem; font-weight: 500; letter-spacing: 0.05em;
  margin-right: 0.5rem;
}
.question .points {
  font-size: 0.72rem; color: var(--text-light); letter-spacing: 0.08em;
  text-transform: uppercase;
}
.question .prompt {
  font-size: 1.02rem; color: var(--navy); margin: 0.6rem 0 1rem;
  font-weight: 400;
}
.question label {
  display: block; padding: 0.65rem 0.85rem; margin-bottom: 0.5rem;
  border: 1px solid var(--bg-border); border-radius: var(--radius-sm);
  cursor: pointer; transition: background .15s, border-color .15s;
}
.question label:hover { border-color: var(--gold); background: #fff; }
.question label input { margin-right: 0.6rem; }
.question label.correct { border-color: var(--green-ok); background: rgba(25, 135, 84, 0.06); }
.question label.incorrect { border-color: var(--red-no); background: rgba(176, 42, 55, 0.06); }
.feedback {
  margin-top: 0.85rem; padding: 0.75rem 1rem;
  border-radius: var(--radius-sm); font-size: 0.92rem; display: none;
}
.feedback.correct   { background: rgba(25, 135, 84, 0.08); color: var(--green-ok); border: 1px solid rgba(25, 135, 84, 0.25); }
.feedback.incorrect { background: rgba(176, 42, 55, 0.08); color: var(--red-no);   border: 1px solid rgba(176, 42, 55, 0.25); }
.feedback.shown { display: block; }
.quiz-actions { display: flex; gap: 1rem; align-items: center; margin-top: 1.5rem; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.75rem 1.6rem; border-radius: var(--radius-md);
  font-weight: 400; font-size: 0.9rem; letter-spacing: 0.02em;
  cursor: pointer; border: none;
}
.btn-primary { background: var(--gold); color: #fff; }
.btn-primary:hover { background: var(--gold-hover); }
.btn-ghost {
  background: transparent; border: 1px solid var(--bg-border);
  color: var(--text-mid);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.score-summary {
  margin-top: 1.5rem; padding: 1.25rem 1.5rem; border-radius: var(--radius-md);
  background: var(--bg-warm); border: 1px solid var(--bg-border);
  font-size: 0.95rem; color: var(--navy); display: none;
}
.score-summary.shown { display: block; }
.score-summary .big {
  font-size: 1.6rem; font-weight: 300; color: var(--gold);
  letter-spacing: -0.01em; margin-right: 0.5rem;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--navy); color: rgba(255,255,255,0.55);
  font-size: 0.78rem; padding: 1.5rem 2rem; text-align: center;
  border-top: 2px solid var(--gold);
}
.footer a { color: var(--gold); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 880px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: relative; height: auto; top: 0;
    border-right: 0; border-bottom: 1px solid var(--bg-border);
    display: none;
  }
  .sidebar.open { display: block; }
  .menu-toggle { display: inline-block; }
  .main { padding: 1.5rem 1.25rem 3rem; }
  .hero-card { padding: 2.25rem 1.5rem; }
  .hero-card h1 { font-size: 1.9rem; }
  .topbar-links a:not(.topbar-cta) { display: none; }
}