/* ===== Stratify Insights — Shared Course Page Styles ===== */

:root {
  --purple: #7B3FA0;
  --purple-d: #5C2E7A;
  --purple-l: #9B5CC0;
  --purple-pale: #F3ECF8;
  --purple-mid: #EAD9F5;
  --white: #FFFFFF;
  --off-white: #FAFAFA;
  --text: #1A1A2E;
  --text-2: #3D3D5C;
  --text-3: #6B6B8A;
  --border: #E8E0F0;
  --nav-h: 72px;
}

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

body {
  font-family: 'Outfit', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
}

/* ===== NAV ===== */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
  display: flex;
  align-items: center;
}

.nav-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  border: none;
  background: none;
  cursor: pointer;
  white-space: nowrap;
  transition: color .15s, background .15s;
}

.nav-link:hover, .nav-link.active { color: var(--purple); background: var(--purple-pale); }

.btn-nav {
  background: var(--purple);
  color: var(--white) !important;
  border-radius: 8px;
  padding: 8px 18px;
  font-weight: 600;
  margin-left: 8px;
}

.btn-nav:hover { background: var(--purple-d) !important; }

.chevron { font-size: 10px; margin-left: 2px; }

/* Dropdown */
.simple-drop {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,.10);
  z-index: 200;
}

.nav-item.open .simple-drop { display: block; }

.simple-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-2);
  text-decoration: none;
  white-space: nowrap;
  transition: background .12s;
}

.simple-item:hover { background: var(--purple-pale); color: var(--purple); }

/* ===== COURSE HERO ===== */
.course-hero {
  background: linear-gradient(135deg, #0F0F1A 0%, color-mix(in srgb, var(--pillar-color, #7B3FA0) 60%, #0F0F1A) 100%);
  color: var(--white);
  padding: 72px 24px 64px;
}

.hero-inner {
  max-width: 820px;
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  margin-bottom: 28px;
  transition: color .15s;
}

.back-link:hover { color: rgba(255,255,255,.9); }

.back-link svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.course-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.badge-p1 { background: rgba(123,63,160,.35); color: #D8AEFF; border: 1px solid rgba(123,63,160,.5); }
.badge-p2 { background: rgba(26,74,110,.35); color: #7EC8FF; border: 1px solid rgba(26,74,110,.5); }
.badge-p3 { background: rgba(27,94,58,.35); color: #7EFFC8; border: 1px solid rgba(27,94,58,.5); }
.badge-p4 { background: rgba(45,55,72,.35); color: #C8D8FF; border: 1px solid rgba(45,55,72,.5); }

.course-h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--white);
}

.course-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.7);
}

.meta-sep {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
}

/* ===== LAYOUT ===== */
.course-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}

/* ===== BODY ===== */
.course-body h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--text);
  margin: 40px 0 16px;
}

.course-body h2:first-child { margin-top: 0; }

.course-body p {
  font-size: 16px;
  color: var(--text-2);
  margin-bottom: 16px;
}

.course-body ul {
  margin: 0 0 24px 0;
  padding-left: 20px;
}

.course-body li {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 8px;
}

blockquote {
  border-left: 3px solid var(--purple);
  margin: 28px 0;
  padding: 16px 24px;
  background: var(--purple-pale);
  border-radius: 0 8px 8px 0;
}

blockquote p {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.15rem;
  font-style: italic;
  color: var(--purple-d);
  margin: 0;
}

/* Module list */
.module-list { margin: 16px 0 32px; display: flex; flex-direction: column; gap: 12px; }

.module-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  align-items: start;
}

.module-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--purple);
  font-weight: 500;
  padding-top: 2px;
}

.module-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.module-desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
}

/* Callout */
.callout {
  background: var(--purple-pale);
  border: 1px solid var(--purple-mid);
  border-radius: 10px;
  padding: 20px 24px;
  margin: 32px 0;
}

.callout-title {
  font-weight: 700;
  font-size: 13px;
  color: var(--purple);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.callout p { font-size: 14px; color: var(--text-2); margin: 0; }
.callout a { color: var(--purple); font-weight: 600; text-decoration: none; }
.callout a:hover { text-decoration: underline; }

/* ===== SIDEBAR ===== */
.course-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.enrol-card {
  background: linear-gradient(135deg, var(--purple-d), var(--purple));
  color: var(--white);
  border-radius: 14px;
  padding: 28px 24px;
}

.sidebar-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.6);
  margin-bottom: 10px;
}

.enrol-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: 16px;
}

.enrol-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.enrol-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.75);
}

.enrol-body {
  font-size: 13px;
  color: rgba(255,255,255,.7);
  margin-bottom: 20px;
  line-height: 1.6;
}

.enrol-btn {
  display: block;
  text-align: center;
  background: var(--white);
  color: var(--purple);
  font-weight: 700;
  font-size: 14px;
  padding: 13px 20px;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity .15s;
}

.enrol-btn:hover { opacity: .9; }

.sidebar-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 20px;
}

.sidebar-card .sidebar-label { color: var(--text-3); margin-bottom: 14px; }

.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.detail-row:last-child { border-bottom: none; padding-bottom: 0; }

.detail-label { color: var(--text-3); }
.detail-val { font-weight: 600; color: var(--text); }

.author-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--purple-d), var(--purple-l));
  color: var(--white);
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.author-name { font-size: 14px; font-weight: 600; color: var(--text); }
.author-creds { font-size: 12px; color: var(--purple); }
.author-bio { font-size: 13px; color: var(--text-3); line-height: 1.6; }

/* ===== RELATED SECTION ===== */
.related-section {
  background: var(--off-white);
  border-top: 1px solid var(--border);
  padding: 64px 24px;
}

.related-inner { max-width: 1200px; margin: 0 auto; }

.related-heading {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 32px;
}

.related-heading em { color: var(--purple); font-style: normal; }

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.rel-card {
  display: block;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 20px;
  text-decoration: none;
  transition: box-shadow .15s, border-color .15s, transform .15s;
}

.rel-card:hover {
  border-color: var(--purple);
  box-shadow: 0 4px 20px rgba(123,63,160,.12);
  transform: translateY(-2px);
}

.rel-tag {
  font-size: 11px;
  font-weight: 600;
  color: var(--purple);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.rel-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.3;
}

.rel-meta { font-size: 12px; color: var(--text-3); }

/* ===== FOOTER ===== */
footer {
  background: #0F0F1A;
  color: rgba(255,255,255,.75);
  padding: 56px 24px 32px;
}

.footer-inner { max-width: 1200px; margin: 0 auto; }

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand-name {
  font-family: 'Cormorant Garamond', serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.footer-tagline { font-size: 13px; color: rgba(255,255,255,.5); line-height: 1.6; }

.footer-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }

.footer-col h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color .15s;
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,.3);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== HAMBURGER BUTTON ===== */
.menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: 8px;
  flex-shrink: 0;
}
.menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.menu-btn.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-btn.open span:nth-child(2) { opacity: 0; }
.menu-btn.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== MOBILE NAV DRAWER ===== */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0; bottom: 0;
  background: var(--white);
  z-index: 149;
  overflow-y: auto;
  padding: 20px 20px 40px;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--border);
}
.mobile-nav.open { display: flex; }
.mobile-nav-link {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.mobile-nav-link:hover { background: var(--purple-pale); color: var(--purple); }
.mobile-nav-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}
.mobile-nav-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 8px 16px 4px;
}
.mobile-nav-enrol {
  display: block;
  margin-top: 16px;
  padding: 15px 20px;
  background: var(--purple);
  color: var(--white) !important;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  border-radius: 8px;
  text-decoration: none;
  transition: background .2s;
}
.mobile-nav-enrol:hover { background: var(--purple-d) !important; }

/* ===== RESPONSIVE ===== */

/* Wide screens — cap content comfortably */
@media (min-width: 1440px) {
  .course-layout { max-width: 1320px; }
  .related-inner { max-width: 1320px; }
  .footer-inner { max-width: 1320px; }
  .nav-inner { max-width: 1320px; }
}

/* Tablet landscape */
@media (max-width: 1024px) {
  .course-layout { gap: 32px; }
  .course-layout { grid-template-columns: 1fr 300px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
}

/* Tablet portrait */
@media (max-width: 900px) {
  .course-layout { grid-template-columns: 1fr; }
  .course-sidebar { position: static; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile */
@media (max-width: 640px) {
  .menu-btn { display: flex; }
  .nav-right .nav-link, .nav-right .nav-item { display: none; }
  .nav-right .btn-nav { display: none; }

  .course-hero { padding: 40px 16px 36px; }
  .course-layout { padding: 32px 16px 56px; gap: 24px; }
  .module-item { grid-template-columns: 1fr; gap: 6px; }
  .module-num { font-size: 10px; }

  .related-section { padding: 40px 16px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-heading { font-size: 1.5rem; margin-bottom: 20px; }

  .footer-cols { grid-template-columns: 1fr 1fr; }
  footer { padding: 40px 16px 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (max-width: 400px) {
  .footer-cols { grid-template-columns: 1fr; }
  .course-h1 { font-size: 1.75rem; }
}