/* ==========================================================================
   Plataforma de Cursos / E-books — estilos próprios
   (usa os tokens de cor do styles.css; não altera o site)
   ========================================================================== */

.plat-hero { text-align: center; padding: 3.5rem 0 1rem; }
.plat-hero h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: .8rem; }
.plat-hero .lead { margin: 0 auto; }

/* Layout: card de login + prévia dos e-books */
.plat-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem;
  align-items: start; padding: 2rem 0 4rem;
}

/* ---------------- Card de autenticação ---------------- */
.auth {
  background: linear-gradient(180deg, rgba(16,36,90,.6), rgba(12,26,56,.6));
  border: 1px solid var(--line); border-radius: 22px;
  padding: 2rem; box-shadow: 0 24px 60px rgba(0,0,0,.4);
  max-width: 440px; width: 100%; margin: 0 auto;
}
.auth h2 { font-size: 1.5rem; margin-bottom: .3rem; text-align: center; }
.auth__sub { color: var(--muted); font-size: .93rem; text-align: center; margin: 0 0 1.6rem; }

/* Alternador Entrar / Criar conta */
.auth__tabs { display: flex; background: rgba(255,255,255,.04); border: 1px solid var(--line);
  border-radius: 12px; padding: 4px; margin-bottom: 1.5rem; }
.auth__tab { flex: 1; text-align: center; padding: .6rem; border-radius: 9px; cursor: pointer;
  font-family: var(--font-display); font-weight: 600; font-size: .95rem; color: var(--muted);
  border: none; background: none; transition: background .2s var(--ease), color .2s var(--ease); }
.auth__tab.is-active { background: linear-gradient(135deg, var(--spark), var(--wave-2)); color: #05122e; }

/* Botão do Google */
.btn-google {
  display: flex; align-items: center; justify-content: center; gap: .7rem; width: 100%;
  padding: .85rem 1rem; border-radius: 12px; cursor: pointer;
  background: #fff; color: #1f2937; border: none; font-weight: 600; font-size: .98rem;
  font-family: var(--font-body); transition: transform .16s var(--ease), box-shadow .2s var(--ease);
}
.btn-google:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(0,0,0,.35); }
.btn-google svg { width: 20px; height: 20px; }

.auth__divider { display: flex; align-items: center; gap: .8rem; color: var(--muted);
  font-size: .82rem; margin: 1.3rem 0; }
.auth__divider::before, .auth__divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.field { margin-bottom: 1rem; }
.field label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .4rem; }
.field input {
  width: 100%; padding: .8rem 1rem; border-radius: 11px; font-size: .98rem;
  background: rgba(7,15,34,.6); border: 1px solid var(--line); color: var(--fg);
  transition: border-color .2s var(--ease);
}
.field input:focus { outline: none; border-color: var(--wave-2); }
.field input::placeholder { color: #6b7ca8; }

.auth .btn { width: 100%; justify-content: center; margin-top: .3rem; }

.auth__foot { text-align: center; margin-top: 1.1rem; }
.auth__foot a { color: var(--spark); font-size: .9rem; }
.auth__note { color: var(--muted); font-size: .78rem; text-align: center; margin-top: 1.2rem; line-height: 1.5; }
.auth__note a { color: var(--muted); text-decoration: underline; }

.hidden { display: none !important; }

/* Estado "logado" */
.auth__loggedin { text-align: center; }
.auth__avatar {
  width: 68px; height: 68px; margin: 0 auto 1rem; border-radius: 50%;
  display: grid; place-items: center; font-family: var(--font-display); font-weight: 700;
  font-size: 1.8rem; color: #05122e;
  background: linear-gradient(135deg, var(--spark), var(--wave-2));
}
.auth__loggedin h2 { margin-bottom: .2rem; }
.auth__loggedin .btn { width: 100%; justify-content: center; margin-top: .9rem; }

/* Aviso de "em breve" ao tentar entrar */
.auth__toast {
  margin-top: 1rem; padding: .8rem 1rem; border-radius: 11px; font-size: .88rem;
  background: rgba(73,180,255,.12); border: 1px solid rgba(73,180,255,.4); color: #cfe6ff;
  text-align: center;
}

/* ---------------- Prévia dos e-books ---------------- */
.shelf h2 { font-size: 1.5rem; margin-bottom: .4rem; }
.shelf__sub { color: var(--muted); margin: 0 0 1.6rem; font-size: .95rem; }
.ebooks { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1.2rem; }
.ebook {
  background: rgba(10,20,44,.55); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; transition: transform .2s var(--ease), border-color .2s var(--ease);
}
.ebook:hover { transform: translateY(-4px); border-color: rgba(91,140,255,.45); }
.ebook__cover {
  aspect-ratio: 3/4; display: grid; place-items: center; position: relative;
  background: linear-gradient(150deg, var(--surface-2), var(--surface));
  color: var(--wave-2); font-family: var(--font-display); font-weight: 700;
}
.ebook__cover span { font-size: 2rem; opacity: .5; }
.ebook__lock { position: absolute; top: .6rem; right: .6rem; background: rgba(7,15,34,.75);
  border: 1px solid var(--line); border-radius: 999px; padding: .2rem .6rem; font-size: .72rem; color: var(--muted); }
.ebook__body { padding: .9rem 1rem 1.1rem; }
.ebook__body h3 { font-size: .98rem; margin: 0 0 .3rem; }
.ebook__price { color: var(--muted); font-size: .88rem; }

.plat-soon { text-align: center; color: var(--muted); font-size: .95rem;
  border: 1px dashed var(--line); border-radius: 16px; padding: 2rem; margin-top: 1rem; }

/* ---------------- Responsivo ---------------- */
@media (max-width: 860px) {
  .plat-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .shelf { order: 2; }
  .auth-wrap { order: 1; }
}

/* ==========================================================================
   Painel do Editor (admin.html)
   ========================================================================== */
.admin-guard { text-align: center; padding: 3rem 0; }
.admin-guard h1 { font-size: 1.8rem; margin-bottom: .6rem; }
.admin-guard .btn { margin-top: 1rem; }

.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.8rem; align-items: start; }
.admin-card {
  background: linear-gradient(180deg, rgba(16,36,90,.55), rgba(12,26,56,.55));
  border: 1px solid var(--line); border-radius: 20px; padding: 1.8rem;
}
.admin-card h2 { font-size: 1.25rem; margin-bottom: 1.2rem; }

.admin-input {
  width: 100%; padding: .75rem .9rem; border-radius: 11px; font-size: .96rem;
  background: rgba(7,15,34,.6); border: 1px solid var(--line); color: var(--fg);
  font-family: var(--font-body);
}
.admin-input:focus { outline: none; border-color: var(--wave-2); }
select.admin-input { appearance: none; }
textarea.admin-input { resize: vertical; }
input[type="file"].admin-input { padding: .55rem; }

.admin-hint { color: var(--muted); font-size: .82rem; display: block; margin-top: .3rem; }
.admin-check { display: flex; align-items: center; gap: .5rem; color: var(--muted);
  font-size: .92rem; margin: .4rem 0 1.2rem; cursor: pointer; }
.admin-check input { width: 18px; height: 18px; accent-color: var(--wave-2); }
.admin-actions { display: flex; gap: .8rem; flex-wrap: wrap; }
.admin-actions .btn { flex: 1; justify-content: center; min-width: 140px; }

.admin-list { display: flex; flex-direction: column; gap: .8rem; }
.admin-row { display: flex; align-items: center; gap: .9rem;
  border: 1px solid var(--line); border-radius: 14px; padding: .7rem; }
.admin-thumb { width: 46px; height: 60px; border-radius: 8px; object-fit: cover; flex: none; }
.admin-thumb--empty { display: grid; place-items: center; font-size: 1.4rem;
  background: linear-gradient(150deg, var(--surface-2), var(--surface)); }
.admin-row__info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .15rem; }
.admin-row__info strong { font-size: .98rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-row__actions { display: flex; gap: .4rem; flex: none; }
.admin-mini { background: rgba(255,255,255,.05); border: 1px solid var(--line); color: var(--fg);
  border-radius: 9px; padding: .4rem .7rem; font-size: .82rem; cursor: pointer; }
.admin-mini:hover { border-color: var(--wave-2); }
.admin-mini--danger { color: #ffb4b4; }
.admin-mini--danger:hover { border-color: rgba(255,90,90,.5); }

@media (max-width: 860px) {
  .admin-grid { grid-template-columns: 1fr; }
}