/* Course shell — visual canon from /learn/l01 (pearl + editorial type).
   Use on every page belonging to a course experience:
   lesson, cabinet, diary, community, feedback, auth, miniapp, pilot.
   Homepage keeps lfm-home.css separately. */

body.lfm-course {
  --ink: #2c2a28;
  --muted: #6e6860;
  --accent: #8a4f3a;
  --line: rgba(44, 42, 40, 0.12);
  --pearl: #f2f6fa;
  --white: #ffffff;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Helvetica Neue", Helvetica, "Manrope", "Segoe UI", Arial, sans-serif;
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  letter-spacing: 0.015em;
  background-color: var(--pearl);
  background-image:
    linear-gradient(180deg, rgba(242,246,250,.98) 0%, rgba(246,249,252,.96) 45%, rgba(242,246,250,.98) 100%),
    radial-gradient(ellipse 70% 45% at 18% 8%, rgba(255,255,255,.9), transparent 60%);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
body.lfm-course::before,
body.lfm-course::after {
  content: none !important;
  display: none !important;
}
body.lfm-course > .site-header { flex: 0 0 auto; }
body.lfm-course > main,
body.lfm-course > .quest,
body.lfm-course > .auth-shell {
  flex: 1 0 auto;
}

body.lfm-course .site-header {
  background: rgba(251, 252, 253, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
body.lfm-course .brand {
  font-family: var(--serif);
  font-size: 1.35rem;
  text-decoration: none;
  color: var(--ink);
}
body.lfm-course .nav a {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--muted);
  text-decoration: none;
}
body.lfm-course .nav a:hover { color: var(--ink); }

body.lfm-course .btn {
  border: 2px solid #1a1816;
  background: #1a1816;
  color: #faf8f5 !important;
  border-radius: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.8rem 1.15rem;
}
body.lfm-course .btn:hover { background: #000; border-color: #000; }
body.lfm-course .btn.secondary {
  background: #fff;
  color: #1a1816 !important;
  border-color: #1a1816;
}
body.lfm-course .btn.secondary:hover { background: #f3f1ed; }
body.lfm-course .btn.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted) !important;
  font-weight: 500;
}

body.lfm-course .tag {
  display: inline-block;
  margin: 0 0 0.65rem;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 400;
}
body.lfm-course .muted { color: var(--muted); }
body.lfm-course .panel {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line);
  padding: 1.25rem 1.35rem;
  backdrop-filter: none;
}
body.lfm-course .panel h2,
body.lfm-course .panel h3,
body.lfm-course h1 {
  font-family: var(--serif);
  font-weight: 400;
  color: var(--ink);
}

/* Lesson / quest (L01 canon) */
body.lfm-course .quest {
  width: min(860px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3.5rem;
}
body.lfm-course .quest > h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 0.5rem;
  line-height: 1.05;
}
body.lfm-course .steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1.25rem 0 1.5rem;
}
body.lfm-course .steps button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}
body.lfm-course .steps button.active {
  background: #1a1816;
  color: #faf8f5;
  border-color: #1a1816;
}
body.lfm-course .steps button.done { border-color: var(--accent); }
body.lfm-course .quest-panel h2 {
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin: 0 0 1rem;
}
body.lfm-course .quest-panel .body {
  white-space: pre-wrap;
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
}
/* Artwork frame — neutral by default; lesson matte is local (ARTWORK_EDGE_COLOR_INHERITANCE). */
body.lfm-course .quest-art {
  margin: 1.25rem 0;
  background: transparent;
  border: 1px solid var(--line);
  overflow: hidden;
}
body.lfm-course .quest-art img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  background: transparent;
}
/* L01 local matte only — not a global theme token */
body.lfm-course.lesson-l01 .quest-art,
body.lfm-course.lesson-l01 .quest-art img {
  background: #fcf5e3;
}

/* Cabinet / diary / community */
body.lfm-course .app-layout {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3.5rem;
}
body.lfm-course .app-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2rem;
}
body.lfm-course .side {
  border-right: 1px solid var(--line);
  padding-right: 1.25rem;
}
body.lfm-course .side a {
  display: block;
  text-decoration: none;
  padding: 0.5rem 0;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}
body.lfm-course .side a.active,
body.lfm-course .side a:hover { color: var(--ink); }
body.lfm-course .lesson-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
body.lfm-course .lesson-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}
body.lfm-course .badge {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
body.lfm-course .badge.free { color: var(--accent); }
body.lfm-course .badge.done { color: var(--accent); }

body.lfm-course .diary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.25rem;
}
body.lfm-course .diary-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.65rem;
}
body.lfm-course .diary-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: #e8edf2;
}

/* Auth */
body.lfm-course .auth-shell {
  display: grid;
  place-items: center;
  padding: 2.5rem 1rem 3rem;
}
body.lfm-course .auth-card {
  width: min(420px, 100%);
  background: #fff;
  border: 1px solid var(--line);
  padding: 1.85rem;
  box-shadow: none;
}
body.lfm-course .auth-card h1 {
  margin-top: 0;
  font-size: 2rem;
}
body.lfm-course input[type=text],
body.lfm-course input[type=email],
body.lfm-course input[type=password],
body.lfm-course textarea,
body.lfm-course select {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 0;
  color: var(--ink);
}

body.lfm-course .course-footer {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  padding: 1.35rem 0 1.75rem;
  color: var(--muted);
  font-size: 0.88rem;
  background: #e8edf2;
}
body.lfm-course .course-footer .wrap {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}
body.lfm-course .course-footer p { margin: 0.2rem 0; }

@media (max-width: 900px) {
  body.lfm-course .app-grid { grid-template-columns: 1fr; }
  body.lfm-course .side {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    align-items: baseline;
  }
  body.lfm-course .side a { padding: 0.25rem 0; }
}