/* ============================================================
   MANUAL / CURSO — auth wall + layout de curso
   (complementa /app.css, o design system do fiscal.social)
   ============================================================ */
.hidden { display: none !important; }

/* ---------- AUTH WALL ---------- */
.auth-screen { min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(1000px 560px at 78% -8%, rgba(22,182,199,.22), transparent 60%),
    radial-gradient(760px 460px at 6% 108%, rgba(180,128,42,.12), transparent 55%),
    linear-gradient(158deg, #0b3a44 0%, #06232a 58%, #041a20 100%); }
.auth-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--line);
  border-radius: 20px; padding: clamp(24px, 4vw, 34px); box-shadow: 0 30px 70px rgba(0,0,0,.35); }
.auth-logo { display: flex; justify-content: center; margin-bottom: 14px; }
.auth-logo img { height: 46px; width: auto; }
.auth-head { text-align: center; margin-bottom: 20px; }
.auth-head h1 { font-family: var(--f-display); font-weight: 600; font-size: 22px; color: var(--ink); margin: 0 0 6px; letter-spacing: -.01em; }
.auth-head p { font-size: 14px; color: var(--muted); margin: 0; max-width: none; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 12px; padding: 4px; margin-bottom: 18px; }
.auth-tab { font-family: var(--f-code); font-size: 13px; font-weight: 600; text-align: center; padding: 9px; border-radius: 8px;
  color: var(--muted); cursor: pointer; border: 0; background: transparent; transition: background .15s, color .15s; }
.auth-tab.active { background: var(--surface); color: var(--ink); box-shadow: 0 1px 4px rgba(6,35,42,.08); }
.auth-note { font-size: 12.5px; color: var(--muted); margin: 14px 0 0; line-height: 1.5; text-align: center; }
.auth-link { background: none; border: 0; color: var(--teal-dark); font: inherit; font-size: 13px; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; }
.msg { border-radius: 12px; padding: 12px 15px; font-size: 14px; margin: 4px 0 14px; line-height: 1.5; }
.msg.ok { background: var(--teal-wash); border: 1px solid var(--teal-line); color: var(--teal-dark); }
.msg.err { background: var(--gold-wash); border: 1px solid #e6d09a; color: var(--gold); }

/* ---------- APP TOPBAR ---------- */
.app-top { position: sticky; top: 0; z-index: 60; display: flex; align-items: center; gap: 14px;
  padding: 10px clamp(14px, 3vw, 26px); background: rgba(246,244,238,.94); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); }
.app-top .brand-logo { height: 34px; width: auto; }
.app-top .sep { width: 1px; height: 24px; background: var(--line-2); }
.app-top .course-name { font-family: var(--f-display); font-weight: 600; font-size: 15px; color: var(--ink); letter-spacing: -.01em; }
.app-top .spacer { flex: 1; }
.app-top .who { font-family: var(--f-code); font-size: 12.5px; color: var(--muted); }
.app-top .btn-mini { font-family: var(--f-sans); font-size: 13px; font-weight: 600; color: var(--text-soft);
  background: var(--surface); border: 1px solid var(--line-2); border-radius: 999px; padding: 7px 14px; cursor: pointer; }
.app-top .btn-mini:hover { border-color: var(--teal-line); color: var(--ink); }
.app-top .menu-b { display: none; }

.app-prog { height: 3px; background: var(--line); position: sticky; top: 55px; z-index: 59; }
.app-prog > i { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--teal-deep), var(--teal)); transition: width .3s var(--ease); }

/* ---------- COURSE LAYOUT ---------- */
.course { display: grid; grid-template-columns: 300px minmax(0, 1fr); align-items: start; }
.course-side { position: sticky; top: 58px; height: calc(100vh - 58px); overflow-y: auto; border-right: 1px solid var(--line);
  background: var(--paper); padding: 20px 14px 40px; }
.mod { margin-bottom: 18px; }
.mod-title { font-family: var(--f-code); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--teal-dark); padding: 6px 12px; margin: 0 0 4px; }
.lesson-link { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 9px; cursor: pointer;
  color: var(--text-soft); font-size: 14px; line-height: 1.35; border-left: 2px solid transparent; }
.lesson-link:hover { background: var(--surface); }
.lesson-link.active { background: var(--teal-wash); color: var(--ink); border-left-color: var(--teal-deep); font-weight: 600; }
.lesson-link .lx { flex: none; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--f-code); font-size: 11px; font-weight: 700; color: var(--muted); background: var(--surface-2); border: 1px solid var(--line-2); }
.lesson-link.done .lx { background: var(--teal); border-color: var(--teal); color: #06232a; }
.lesson-link.active .lx { border-color: var(--teal-deep); color: var(--teal-dark); }

.course-main { min-width: 0; padding: clamp(26px, 4vw, 52px) clamp(20px, 5vw, 72px) 90px; }
.lesson { max-width: 760px; margin: 0 auto; }
.lesson .eyebrow-l { font-family: var(--f-code); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--teal-dark); font-weight: 600; }
.lesson h1 { font-family: var(--f-display); font-weight: 600; font-size: clamp(28px, 4vw, 40px); line-height: 1.1; letter-spacing: -.02em; color: var(--ink); margin: 8px 0 20px; text-wrap: balance; }
.lesson h2 { font-size: clamp(21px, 2.6vw, 27px); margin: 40px 0 12px; }
.lesson h3 { font-family: var(--f-display); font-weight: 600; font-size: 19px; color: var(--ink); margin: 26px 0 8px; letter-spacing: -.01em; }
.lesson p, .lesson li { font-size: 16.5px; line-height: 1.72; color: var(--text-soft); }
.lesson p { max-width: none; }
.lesson .lead { font-size: 19px; color: var(--text-soft); }
.lesson img { max-width: 100%; border-radius: 12px; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(6,35,42,.1); margin: 8px 0; }
.lesson figure { margin: 24px 0; }
.lesson figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; text-align: center; font-family: var(--f-code); }
.lesson strong { color: var(--ink); }
.lesson ul, .lesson ol { max-width: none; padding-left: 22px; }
.lesson li { margin-bottom: 8px; }
.lesson li::marker { color: var(--teal-deep); }

.lesson-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--line); }
.lesson-nav button { display: inline-flex; flex-direction: column; gap: 2px; max-width: 46%; text-align: left; background: var(--surface);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 16px; cursor: pointer; transition: border-color .18s, transform .18s; }
.lesson-nav button:hover:not(:disabled) { border-color: var(--teal-line); transform: translateY(-2px); }
.lesson-nav button:disabled { opacity: .4; cursor: default; }
.lesson-nav .np { font-family: var(--f-code); font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.lesson-nav .nt { font-weight: 600; font-size: 14px; color: var(--ink); }
.lesson-nav .next { text-align: right; align-items: flex-end; margin-left: auto; }
.lesson-done { display: inline-flex; align-items: center; gap: 9px; margin-top: 26px; font-family: var(--f-sans); font-weight: 600; font-size: 14px;
  background: var(--teal); color: #06232a; border: 0; border-radius: 999px; padding: 11px 20px; cursor: pointer; }
.lesson-done.is-done { background: var(--teal-wash); color: var(--teal-dark); border: 1px solid var(--teal-line); }

.center-load { min-height: 100vh; display: grid; place-items: center; color: var(--muted); font-family: var(--f-code); font-size: 14px; }

@media (max-width: 860px) {
  .course { grid-template-columns: 1fr; }
  .app-top .menu-b { display: inline-flex; align-items: center; gap: 7px; background: none; border: 1px solid var(--line-2);
    border-radius: 10px; padding: 7px 12px; font-family: var(--f-code); font-size: 13px; color: var(--ink); cursor: pointer; }
  .app-top .who { display: none; }
  .course-side { position: fixed; top: 0; left: 0; height: 100%; width: min(84vw, 320px); z-index: 110; transform: translateX(-100%);
    transition: transform .28s var(--ease); box-shadow: 16px 0 50px rgba(6,35,42,.2); padding-top: 24px; }
  .course-side.open { transform: translateX(0); }
}