/* =====================================================
   AI for Creators & Researchers
   Premium course stylesheet.
   Charcoal + warm gold palette; generous whitespace;
   editorial typography inspired by magazine-quality
   reading experiences.
   ===================================================== */

:root {
  --c-ink:          #111827;
  --c-ink-soft:     #1F2937;
  --c-graphite:     #374151;
  --c-slate:        #4B5563;
  --c-stone:        #6B7280;
  --c-cloud:        #D1D5DB;
  --c-mist:         #E5E7EB;
  --c-paper:        #F9FAFB;
  --c-cream:        #FFFBEB;

  --c-gold:         #CA8A04;
  --c-gold-soft:    #FEF9C3;
  --c-gold-deep:    #854D0E;
  --c-gold-bg:      #FEFCE8;

  --c-ocean:        #0E7490;
  --c-ocean-soft:   #E0F2FE;
  --c-leaf:         #166534;
  --c-leaf-soft:    #DCFCE7;
  --c-rose:         #9F1239;
  --c-rose-soft:    #FFE4E6;

  --card-shadow: 0 1px 2px rgba(17, 24, 39, 0.04), 0 4px 16px rgba(17, 24, 39, 0.06);
  --card-shadow-lg: 0 4px 8px rgba(17, 24, 39, 0.06), 0 16px 40px rgba(17, 24, 39, 0.10);
}

/* --- Reset some of the parent site styles that we want to override --- */

.course-root {
  color: var(--c-ink);
  background: var(--c-cream);
}

.course-root p, .course-root li { line-height: 1.75; }

.course-root a { color: var(--c-gold-deep); text-decoration: underline; text-decoration-color: var(--c-gold); text-underline-offset: 3px; }
.course-root a:hover { color: var(--c-ink); }

/* ---- Hero (landing) ------------------------------ */

.premium-hero {
  background: linear-gradient(135deg, #0B1120 0%, #1F2937 50%, #27272A 100%);
  color: white;
  padding: 5rem 2rem 4.5rem;
  border-radius: 16px;
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
}
.premium-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 18% 22%, rgba(250, 204, 21, 0.18) 0%, transparent 35%),
    radial-gradient(circle at 82% 78%, rgba(56, 189, 248, 0.12) 0%, transparent 42%);
  pointer-events: none;
}
.premium-hero > * { position: relative; z-index: 1; }
.premium-hero .eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.9rem;
}
.premium-hero h1 {
  color: white;
  font-family: 'Merriweather', Georgia, serif;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin-bottom: 1rem;
  max-width: 20ch;
}
.premium-hero .lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin-bottom: 2rem;
}
.premium-hero .hero-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2.2rem;
  padding-top: 1.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.premium-hero .meta-stat { display: flex; flex-direction: column; }
.premium-hero .meta-stat .num {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1;
}
.premium-hero .meta-stat .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.4rem;
}

.premium-cta-row {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}
.btn-gold {
  background: var(--c-gold);
  color: var(--c-ink);
  padding: 0.85rem 1.6rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid var(--c-gold);
  transition: all 0.15s;
  display: inline-block;
}
.btn-gold:hover { background: #F7C631; border-color: #F7C631; transform: translateY(-1px); text-decoration: none; color: var(--c-ink); }
.btn-ghost {
  background: transparent;
  color: white;
  padding: 0.85rem 1.6rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 2px solid rgba(255, 255, 255, 0.28);
  display: inline-block;
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: white; text-decoration: none; }

/* ---- Value pillars (landing) --------------------- */

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}
.pillar-card {
  background: white;
  border: 1px solid var(--c-mist);
  border-radius: 12px;
  padding: 1.8rem 1.6rem;
  box-shadow: var(--card-shadow);
}
.pillar-card .pillar-num {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 2.2rem;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.pillar-card h3 {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.1rem;
  color: var(--c-ink);
  margin: 0 0 0.6rem;
}
.pillar-card p {
  font-size: 0.92rem;
  color: var(--c-slate);
  margin: 0;
}

/* ---- Progress bar --------------------------------- */

.progress-wrap {
  background: white;
  border: 1px solid var(--c-mist);
  border-radius: 12px;
  padding: 1.6rem 1.8rem;
  margin: 2.5rem 0;
  box-shadow: var(--card-shadow);
}
.progress-wrap h3 {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.1rem;
  margin: 0 0 0.9rem;
  color: var(--c-ink);
}
.progress-outer {
  height: 10px;
  background: var(--c-mist);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.6rem;
}
.progress-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--c-gold), #F59E0B);
  border-radius: 999px;
  transition: width 0.4s ease-out;
  width: 0%;
}
.progress-labels {
  display: flex; justify-content: space-between;
  font-size: 0.9rem;
  color: var(--c-slate);
}

/* ---- Week sections (landing) --------------------- */

.week-block {
  margin: 2.4rem 0;
}
.week-head {
  display: flex; align-items: baseline; gap: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--c-gold);
  margin-bottom: 1.1rem;
}
.week-head .week-no {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
  font-weight: 700;
}
.week-head .week-title {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.35rem;
  color: var(--c-ink);
  font-weight: 700;
}
.week-head .week-meta {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--c-stone);
}

.day-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.9rem;
}
.day-card {
  display: flex; flex-direction: column; gap: 0.3rem;
  padding: 1.1rem 1.15rem;
  background: white;
  border: 1px solid var(--c-mist);
  border-radius: 10px;
  color: var(--c-ink);
  text-decoration: none;
  transition: all 0.16s;
  position: relative;
}
.day-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-gold);
  box-shadow: var(--card-shadow-lg);
  text-decoration: none;
}
.day-card.done { background: var(--c-gold-bg); border-color: var(--c-gold); }
.day-card .day-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
}
.day-card .day-name {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-ink);
  line-height: 1.25;
}
.day-card .day-gist {
  font-size: 0.88rem;
  color: var(--c-slate);
  line-height: 1.4;
}
.day-card .check-dot {
  position: absolute;
  top: 0.85rem; right: 0.9rem;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: 2px solid var(--c-cloud);
  background: white;
}
.day-card.done .check-dot {
  background: var(--c-gold);
  border-color: var(--c-gold);
  box-shadow: inset 0 0 0 3px white;
}

/* ---- Day page --------------------------------- */

.day-page { max-width: 780px; margin: 0 auto; }

.day-breadcrumb {
  font-size: 0.85rem;
  color: var(--c-stone);
  margin: 1rem 0 0.8rem;
}
.day-breadcrumb a { color: var(--c-gold-deep); }

.day-hero-premium {
  background: linear-gradient(135deg, #111827 0%, #1F2937 55%, #27272A 100%);
  color: white;
  padding: 2.8rem 2rem 2.4rem;
  border-radius: 14px;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}
.day-hero-premium::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 0%, rgba(250,204,21, 0.18) 0%, transparent 50%);
  pointer-events: none;
}
.day-hero-premium > * { position: relative; z-index: 1; }
.day-hero-premium .day-label {
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.day-hero-premium h1 {
  color: white;
  font-family: 'Merriweather', Georgia, serif;
  font-size: 2.4rem;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}
.day-hero-premium .tagline {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.55;
  max-width: 56ch;
}
.day-hero-premium .day-meta {
  margin-top: 1.2rem;
  display: flex; flex-wrap: wrap; gap: 1rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}
.day-hero-premium .day-meta .pill {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
}

/* ---- Vignette (opening paragraph block) ---------- */

.vignette {
  border-left: 3px solid var(--c-gold);
  padding: 0.3rem 0 0.3rem 1.2rem;
  margin: 1.6rem 0 2rem;
  font-size: 1.1rem;
  font-family: 'Merriweather', Georgia, serif;
  font-style: italic;
  color: var(--c-graphite);
  line-height: 1.6;
}

/* ---- Section headings on day pages --------------- */

.day-section { margin: 2.4rem 0; }
.day-section h2 {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.55rem;
  color: var(--c-ink);
  margin: 0 0 0.8rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--c-mist);
}
.day-section h3 {
  font-size: 1.1rem;
  color: var(--c-ink);
  margin: 1.2rem 0 0.5rem;
  font-weight: 700;
}
.day-section p { color: var(--c-graphite); }
.day-section ol, .day-section ul { margin: 0.6rem 0 0.6rem 1.4rem; }
.day-section li { margin: 0.35rem 0; color: var(--c-graphite); }

/* ---- Callout variants --------------------------- */

.callout {
  margin: 1.2rem 0;
  padding: 1rem 1.2rem;
  border-radius: 10px;
  border-left: 4px solid;
}
.callout .callout-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 0.3rem;
}
.callout p:last-child { margin-bottom: 0; }

.callout-setup {
  background: var(--c-ocean-soft);
  border-color: var(--c-ocean);
}
.callout-setup .callout-label { color: var(--c-ocean); }

.callout-tip {
  background: var(--c-gold-soft);
  border-color: var(--c-gold);
}
.callout-tip .callout-label { color: var(--c-gold-deep); }

.callout-warn {
  background: var(--c-rose-soft);
  border-color: var(--c-rose);
}
.callout-warn .callout-label { color: var(--c-rose); }

.callout-compare {
  background: var(--c-leaf-soft);
  border-color: var(--c-leaf);
}
.callout-compare .callout-label { color: var(--c-leaf); }

.callout-link {
  background: var(--c-paper);
  border-color: var(--c-slate);
}
.callout-link .callout-label { color: var(--c-slate); }

/* ---- Exercise box (prominent) -------------------- */

.exercise-block {
  background: white;
  border: 2px solid var(--c-ink);
  border-radius: 12px;
  padding: 1.4rem 1.6rem;
  margin: 1.6rem 0;
  position: relative;
}
.exercise-block::before {
  content: "";
  position: absolute;
  top: -1px; left: 20px;
  width: 40px; height: 3px;
  background: var(--c-gold);
}
.exercise-block .exercise-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
  margin-bottom: 0.2rem;
}
.exercise-block h3 {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 1.2rem;
  color: var(--c-ink);
  margin: 0 0 0.6rem;
}
.exercise-block .exercise-meta {
  display: flex; gap: 1rem;
  font-size: 0.8rem;
  color: var(--c-stone);
  margin-bottom: 0.8rem;
}
.exercise-block .exercise-meta .tag {
  background: var(--c-gold-bg);
  color: var(--c-gold-deep);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}

/* ---- Mark complete -------------------------------- */

.complete-box {
  background: white;
  border: 2px dashed var(--c-gold);
  border-radius: 12px;
  padding: 1.6rem;
  text-align: center;
  margin: 2.5rem 0 1.5rem;
}
.complete-box.done { background: var(--c-gold-bg); border-style: solid; }
.complete-btn {
  background: var(--c-ink);
  color: white;
  border: none;
  padding: 0.9rem 1.8rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}
.complete-btn:hover { background: var(--c-graphite); }
.complete-btn.done { background: var(--c-gold-deep); }
.complete-btn.done::before { content: "\2713   "; }
.complete-status { margin-top: 0.6rem; font-size: 0.88rem; color: var(--c-stone); }

/* ---- Day nav -------------------------------- */

.day-nav {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-mist);
  font-size: 0.92rem;
}
.day-nav a { color: var(--c-gold-deep); font-weight: 600; text-decoration: none; }
.day-nav a:hover { text-decoration: underline; }
.day-nav .middle { color: var(--c-stone); font-size: 0.85rem; }

/* ---- Certificate section -------------------------- */

.cert-panel {
  background: white;
  border: 2px solid var(--c-gold);
  border-radius: 14px;
  padding: 2.4rem 2rem;
  text-align: center;
  margin: 2.2rem 0;
}
.cert-panel.locked {
  background: var(--c-paper);
  border-style: dashed;
  border-color: var(--c-cloud);
}
.cert-panel h2 {
  font-family: 'Merriweather', Georgia, serif;
  margin: 0 0 0.6rem;
  color: var(--c-ink);
}
.cert-panel .cert-note {
  color: var(--c-stone);
  font-size: 0.9rem;
  margin-top: 1rem;
}
.name-input-large {
  display: block;
  margin: 1rem auto;
  max-width: 320px;
  padding: 0.75rem 1rem;
  border: 2px solid var(--c-cloud);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  text-align: center;
}
.name-input-large:focus { outline: none; border-color: var(--c-gold); }

/* ---- Pricing row (landing) ----------------------- */

.pricing-band {
  background: linear-gradient(135deg, #FEFCE8 0%, #FEF9C3 100%);
  border: 1px solid var(--c-gold);
  border-radius: 14px;
  padding: 2.2rem 2rem;
  margin: 2.5rem 0;
  text-align: center;
}
.pricing-band h2 {
  font-family: 'Merriweather', Georgia, serif;
  color: var(--c-ink);
  margin: 0 0 0.5rem;
}
.pricing-band .price-line {
  font-size: 1.2rem;
  color: var(--c-graphite);
  margin-bottom: 1rem;
}
.pricing-band .price {
  font-family: 'Merriweather', Georgia, serif;
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--c-ink);
}
.pricing-band .price-note {
  font-size: 0.85rem;
  color: var(--c-slate);
  margin-top: 0.8rem;
  font-style: italic;
}

/* Responsive polish */
@media (max-width: 640px) {
  .premium-hero { padding: 3rem 1.25rem 2.5rem; }
  .premium-hero h1 { font-size: 1.9rem; }
  .day-hero-premium { padding: 1.8rem 1.3rem; }
  .day-hero-premium h1 { font-size: 1.7rem; }
  .premium-hero .hero-meta-row { gap: 1.2rem; }
}

@media print {
  .day-nav, .complete-box, .premium-cta-row { display: none; }
  .day-hero-premium { background: white !important; color: black !important; }
  .day-hero-premium h1 { color: black !important; }
  a { color: black; text-decoration: underline; }
}